asked what separates him from Brownback, he said that "the key difference is I've actually been a Governor for ten and a half years and I've run a government." He also said that no senator has been elected since JFK, and "frankly there's a good reason for that." Several polls in the state have placed Huckabee ahead of Brownback; a Mason-Dixon poll placed him at 7% with Brownback at 6. Huckabee acknowledged their similarities and said that "without a doubt, we're going after the same voters." Other sources have expressed concern that there is room for only one of them in the race, and that if Huckabee comes out on top, Brownback will struggle to raise money and vice versa. On July 26, Huckabee called upon Tom Tancredo to pull his campaign's campaign ad which attacked Huckabee on the subject of illegal immigration. Huckabee called the ad "blatantly dishonest" and said that "when people engage in a completely false attack, it's usually an act of desperation. To me, it's a badge of honor because he sees that we are reaching the people we are trying to reach." Tancredo's campaign responded by saying that Huckabee supports amnesty for illegal immigrants, and that the ad was correct while Huckabee's campaign insisted that the ad "clearly distorts Mike Huckabee's conservative record on amnesty." In early August, after the collapse of the I-35W Mississippi River bridge in Minneapolis, Minnesota, Huckabee expressed his sympathy to the victims of the disaster and said that taxes do not need to be raised in order to fix the roads, bridges, and other infrastructure, claiming that the billions of dollars spent on other countries' infrastructure should be spent in the United States. He said that "we have to start addressing building this country, not everybody else's." Mike Huckabee appeared on the CBS Evening News on August 1 to discuss the Iowa Straw Poll and his ongoing campaign in Iowa. He was among the Republican debaters in Iowa on August 5, and came in with 8 percent support in a pre-debate poll, tying with John McCain and ahead of his main competitor Sam Brownback who came in with 5 percent. Huckabee was pleased with the results, which showed that he was ahead of all of his second-tier candidates, and said "we think [the poll is] a great sign for us because it shows that when other candidates are standing still