4) Good news for the DCCC: The committee has erased a $19 million-plus debt months ahead of schedule. 3) A Senate campaign shakeup in Michigan: Cornerstone Schools co-founder Clark Durant, who is waging a Senate campaign to the right of former Rep. Pete Hoekstra, is shaking up his campaign leadership. Dick Wadhams, the former chairman of the Colorado Republican Party, who joined the Durant team in September with the intent of managing the campaign beginning next year is no longer going to do that. "I had been working as a consultant to the campaign for the past few months with the intent of running the campaign full time starting in January. But I came to the conclusion it was not the right fit," Wadhams told Hotline On Call. Andy Anuzis has reportedly taken over control of the Durant team, according to MIRS. A shakeup on this scale is rarely a good sign this early in the race. Durant had and impressive opening fundraising quarter, but did offer up a gaffe in November when he suggested the wealth gap should be wider. 2) This evening, the Republican presidential candidates will face off in Sioux City, Iowa at a debate hosted by Fox News and the Iowa GOP at 9 p.m. ET. It's the last debate before the Jan. 3 Caucuses. The Des Moines Register has a good rundown of what is at stake for each candidate. Stay tuned to NationalJournal.com this evening for continuing coverage. 1) The debate will also be the last chance for Mitt Romney and Newt Gingrich to go directly after each other before Iowa. In recent days, Romney has stepped up his attacks against the former Speaker in a major way. It continues this morning in an interview with the New York Times. Romney: "Zany is not what we need in a president. Zany is great in a campaign. It's great on talk radio. It's great in print, it makes for fun reading, but in terms of a president, we need a leader, and a leader needs to be someone who can bring Americans together."