frequently. Use of the Internet for grassroots fundraising by US presidential candidates such as Howard Dean, Barack Obama, Ron Paul and Bernie Sanders established it as an effective political tool. In 2016, the use of social media was a key part of Donald Trump campaign. Trump and his opinions were established as constantly "trending" by posting multiple times per day, and his strong online influence was constantly reinforced. Internet channels such as YouTube were used by candidates to share speeches and ads and to attack candidates by uploading videos of gaffes. A study done by the Pew Internet & American Life Project in conjunction with Princeton Survey Research Associates in November 2010 shows that 54% of adults in the United States used the internet to get information about the 2010 midterm elections and about specific candidates. This represents 73% of adult internet users. The study also showed that 22 percent of adult internet users used social networking sites or Twitter to get information about and discuss the elections and 26 percent of all adults used cell phones to learn about or participate in campaigns. E-campaigning, as it has come to be called, is subject to very little regulation. On March 26, 2006, the Federal Election Commission voted unanimously to "not regulate political communication on the Internet, including emails, blogs and the creating of Web sites". This decision made only paid political ads placed on websites subject to campaign finance limitations. A comment was made about this decision by Roger Alan Stone of Advocacy Inc. which explains this loophole in the context of a political campaign: "A wealthy individual could purchase all of the e-mail addresses for registered voters in a congressional district... produce an Internet video ad, and e-mail it along with a link to the campaign contribution page... Not only would this activity not count against any contribution limits or independent expenditure requirements; it would never even need to be reported." A key part of the United States presidential campaigns is the use of media and framing. Candidates are able to frame their opponents and current issues in ways to affect the way voters will see events and the other presidential candidates. This is known as "priming". For example, during the 2016 presidential election Donald Trump successfully influenced the way voters thought about Hillary Clinton, by encouraging voters to think of Clinton as "Crooked Hillary" or a "Nasty Woman".