Rank-and-file Republicans aren't the only ones who could deep-six a fiscal cliff compromise. Tom Harkin today called on Democrats to reject the deal, furious over President Obama's apparent willingness to up his tax threshold to $450,000. "They think Republicans may object? We may object," the Iowa senator told CNN today, before going to the Senate floor and urging Democrats to do just that. "The deal must be one that really does favor the middle class, the real middle class, those making 30, 50, 60, 70 thousand dollars a year," he said. "I have said before no deal is better than a bad deal, and this looks like a very bad deal the way this is shaping up." In other lawmakers-on-TV news: