[John Berman, Cnn Anchor:] Small town Iowa turns into big time media circus. This was the low-key listening tour from Hillary Clinton. Wow. Not so low key. This morning, new insight into what her candidacy will look like this time. That is as Republican rivals make some big moves today. New complications for nuclear negotiations with Iran, the White House conceding to Congress that Congress will have a say, will get to weigh in on the nuclear negotiations. What does that mean for the prospects of the deal? We'll tell you ahead. Yemen in crisis, weeks of war leaving that country devastated. CNN got a remarkable exclusive look at the devastation. An attempted aid mission, we're live. Welcome back to EARLY START, everyone. I'm John Berman. Christine Romans is not feeling well this morning. It's 31 minutes past the hour. Happening this morning, the Hillary storm moves deeper into Iowa. The campaign wants this, a low-key series of listening events. Well, it's getting that but so much more. There is also this, the media frenzy. Reporters forced to chase the small Clinton caravan as it drives around the corner in her so-called Scooby van. A key question, though, what do voters think of this? How is it playing in Iowa? Senior political correspondent, Brianna Keilar is there Brianna.
[Brianna Keilar, Cnn Senior Political Correspondent:] Good morning, John and Christine. Hillary Clinton will spend her second day of campaigning at a fruit company outside of Des Moines. This is after all a state where agriculture is king. This follows yesterday where she visited Leclair, a small town of less than 4,000 people. She stopped at a coffee shop. Talked to some locals there and then she was on to have a round table at the satellite campus of the Kirkwood Community College. She talked with students and faculty. She struck a populist tone taken on Wall Street and stagnant middle class wages.
[Hillary Clinton , Presidential Candidate:] The deck is still stacked at those in favor at the top. There's something wrong with that. There is something wrong when CEOs make 300 times more than the typical worker. There's something wrong when American workers keep getting more productive, that productivity is not matched in their paychecks.
[Keilar:] The only policy position Hillary Clinton outlined was a proposal to do away with what she called unaccountable money so super PACs and the big donors who have proliferated along with them. No word, though, she did not explain how that would square with Priorities USA, the Democratic super PAC that she has blessed to help her in her run.
[Berman:] Our thanks to Brianna in Iowa. Meanwhile, Republican presidential contender, Marco Rubio, holds his first campaign event today pushing a plan for tax reform. The senator spent Tuesday in Washington working on Senate business and speaking to CNN's Jake Tapper. A really interesting interview, he said that Hillary Clinton is not entitled to the women's vote any more than he is entitled to the Hispanic vote.
[Sen. Marco Rubio , Presidential Candidate:] I would never assume that every Hispanic in America has to vote for me because I'm Hispanic, because my last name is Rubio. I have to earn their support. That may intrigue them about my candidacy, but ultimately I have to prove that I'm the right person for the job.
[Berman:] Now tied with Senator Rubio right now for sixth place in the latest CNN poll is New Jersey Governor Chris Christie, who is not so far an official candidate. So why is he in New Hampshire, the first primary state of the nation? Well, he's no doubt trying to build support for a presidential run with what he is calling his tell it like it is tour.
[Governor Chris Christie , New Jersey:] I will not pander. I will not flip-flop and I'm not afraid to tell you the truth as I see it, whether you like it or not. I want to help lead a national conversation that rewards truth over pandering.
[Berman:] Later today, the governor holds the first of two New Hampshire town halls set for this week. He promises many more. New this morning, the nuclear deal, not with Iran exactly but with Congress. A compromise bill that lets Congress weigh in on any final agreement between the U.S. and Iran, a bill the White House says the president is willing to sign. The legislation passed the Senate Foreign Relations Committee unanimously. CNN's Jim Acosta is at the White House with the latest.
[Jim Acosta, Cnn Senior White House Correspondent:] The White House is giving up on its fight with Congress over a bipartisan bill that would give lawmakers the ability to vote up or down on the Iran nuclear deal after Republicans and Democrats on the Senate Foreign Relations Committee crafted a compromise bill. Dropping some provisions that were opposed by the White House, aides to the president said it was a measure Mr. Obama could support. At issue is whether the bill would force Iran to renounce terrorism, a provision the White House deemed a poison pill aimed at killing the nuclear talks. The amount of time lawmakers would have to weigh in on the deal was also shortened meeting another White House demand. After repeated questions from reporters, White House Press Secretary Josh Earnest acknowledged that the changes brokered by the committee's chairman, Bob Corker, and ranking member, Ben Cardin were enough to withdraw the veto threat. Here's what he had to say.
[Josh Earnest, White House Press Secretary:] What I am willing to say is that despite the things about it that we don't like, enough substantial changes have been made that the president would be willing to sign it because it would reflect the kind of compromise that he'd be willing to sign.
[Acosta:] But Chairman Corker said there was another reason why the White House dropped its veto threat that Republicans and Democrats were on the verge of lining up enough votes to override a presidential veto. Corker tweeted the simple fact is that the White House dropped its veto threat because they weren't going to have enough votes to sustain a veto.
[Berman:] Our thanks to Jim Acosta at the White House. Now from the White House, President Obama submitted an official request to Congress to remove Cuba from a list of state sponsors of terrorism. The Cuban government called the move a just decision. Lawmakers now have 48 days to review the request are not expected to block it. If Cuba comes off that list, sanctions most of them would remain in place, but U.S. businesses and banks would be more likely more inclined to invest in the Cuban market. Breaking overnight, the Senate came together to approve the so-called Medicare Doc Fix and the final vote is 92-8. The measure repairs the formula for reimbursing Medicare physicians, had passed just in time to hit off a 21 percent pay cut for those doctors. The bill now goes to the president's desk. You know, they had to pass this every year for the last several years. It was sort of ridiculous. This puts a more permanent fix in place. The president said it will strengthen the health care system and he would be proud to sign it. Iraq's new prime minister is canvassing Washington for financial help today. Haider Al-Abadi met with President Obama and received a promise of $200 million in humanitarian aid. But the Iraqi leader said he needs not millions but billions to rebuild his country and battle ISIS. He will meet with members of Congress today along with the managing director of the International Monetary Fund, the president of the World Bank and senior executives from oil companies and international banks. Iraq is facing a budget deficit of $22 billion. The sagging oil prices mostly to blame. There are fears this morning that ISIS could take control of the key Iraqi city of Ramadi within hours. An official in Western Iraq tells CNN that ISIS fighters now have Ramadi essentially surrounded. Government forces not sure how much longer they can hold on. They're desperately calling for reinforcements and for air support from the U.S.-led coalition. It's been three weeks since Saudi Arabia launched its first air strike against Iranian-backed Houthi rebels in Yemen. It has been a bloody campaign. The United Nations is now stepping in voting to ban arm sales to the Houthis, this as the Iranians are calling for a ceasefire. The conflict has triggered a huge humanitarian crisis with more than 120,000 Yemenis forced to flee their homes. Our CNN senior international correspondent, Nick Paton Walsh got a firsthand look at the efforts to bring help to some of these people in Yemen. Good morning, Nick.
[Nick Paton Walsh, Cnn Senior International Correspondent:] John, it's pretty remarkable, how difficult it is to complete the task, to UNICEF, the children's agency, of delivering urgently needed food and medicine to the capital, Sana'a. The runway at that airport, they are miraculously still intact despite the heavy bombing campaign of the past three weeks and negotiated with 13 different sets of permission, a two-hour window in which their plane could land there. They were delivering 75 metric tons. The pictures you see seem to show an awful lot, but that is not anything like the amounts that those suffering inside Yemen need. We saw medicines being offloaded. A complex situation because those two hours are basically the only part of the Saudi window permitted in the Houthi controlling the airport window that would actually overlap. And then came Air India jets bringing some Yemenis remarkably back, taking some terrified civilians still out of the country as well. We saw, of course, to the devastation wrought upon that airport, the military objectives around it hit heavily it seems by the Saudi campaign. But we heard a U.N. resolution just now in the past 24 hours, which talked about an arms blockade against those Houthi rebels themselves, but didn't really deal with the humanitarian crisis. It simply called on the U.N. secretary-general to negotiate a window to deliver humanitarian aid. We saw one window, how hard that was to negotiate, how hard that was to complete and that delivered really a smallest part of a fraction of what is required, millions without food or water. Children, their lives at risk day by day as medicine is scarce there. As the bombing continues and no sign of a political off-ramp here appearing John.
[Berman:] Now the need for that aid will only grow and the difficulty in getting it there will only grow. Nick Paton Walsh for us, thanks so much, Nick. Developing this morning, a top operative in Yemen has been killed by a U.S. drone strike. The terror group confirms Ibrahim al-Rubaish died Monday on Yemen's southern coast. The 35-year-old Saudi citizen spent five years in Guantanamo Bay and served as a top spokesman for al Qaeda in the Arabian Peninsula. Al Rubaish is one of a half dozen senior members of al Qaeda killed in the last year by U.S. air attacks. A shocking just released government report warns that hundreds of commercial jets could be vulnerable to hackers. The Government Accountability Office concludes it is theoretically possible for someone with a laptop to take over a jetliner's navigation system and commandeer in the plane. One of the report's authors tell CNN that the Boeing 787 Dreamliner along with the Airbus A350 and A380 all have advance cockpit systems that are wired into the same Wi-Fi system used by passengers, which makes them susceptible to attacks. Time now for EARLY START on "Your Money," Asian stocks are mostly lower with disappointing growth in China, disappointing at 7 percent in the first quarter. How could that be a bad thing? Well, it is the slowest pace in China since 2009. European stocks are higher. We'll hear from the European Central Bank today on interest rates. Here in the U.S., stock futures are up a bit and it is tax day. If you haven't filed yet, my advice is panic. But here is some productive steps, first, file the paperwork, even if you can't pay, it will generally cost you more to file late than pay late than pay late. And if you can't get the paperwork done on time, file for an extension. Remember, you're only pushing back the deadline, though, on that paperwork. You still have to pay any taxes that you owe. They will get you, one way or another. New accusations of excessive police force, an officer crashes his patrol car into a robbery suspect on purpose. Did he go too far? We'll have the details next.