President Obama and likely Republican challenger Mitt Romney got into it Friday. Obama's and his top staffers' Twitter accounts blasted a Washington Post story on Mitt Romney releasing only parts of his tax returns and financial investment statements. "So what's Romney hiding?" asked the president's Twitter. It wasn't long before Team Mitt hit back. "President Obama will do anything to try and distract Americans from his record of chronic unemployment, lower incomes, and higher gas prices," said a spokeswoman.