Sen. Joe Lieberman (I-Conn.) is doing everything he can to lose his committee chairmanship, writes kos, who posts a letter that Lieberman sent on behalf of John McCain’s campaign that uses the pejorative “Democrat Party” (instead of “Democratic”). The blogger hopes Lieberman sticks around for 2012, so that voters can boot him from office. In Missouri, Barack Obama is leading John McCain, 43 percent to 42 percent, in the latest Rasmussen poll, a 7-perecentage-point swing from the last survey, kos writes. Obama’s lead should grow, according to the blogger, as Democrats in the state, a fifth who said they would vote for McCain, rally around the new presumptive Democratic nominee.