Followers: 1.7 million
Sample tweet: "@Sn00ki u r right, I would never tax your tanning bed! Pres Obama's tax/spend policy is quite The Situation. but I do rec wearing sunscreen!"
Arizona Senator John McCain famously said he didn't use e-mail during the 2008 presidential campaign. But just a couple of years later, in August 2010, a George Washington UniversityNew York University survey found McCain to have the highest "digital IQ" among U.S. Senators. From uploading pictures from his journeys abroad to exchanging tweets with the pint-sized star of MTV's Jersey Shore about Obama's proposed tanning-bed tax, McCain has seemingly put his technologically illiterate days behind him.