By Compiled by Samuel Rubenfeld

Democrats

•Barack Obama now leads the total popular vote in the Democratic primaries, including the vote totals in Florida and Michigan, reports NBC News. These states were stripped of their delegates for holding primaries earlier than the Democratic National Committee said they could.

•Clinton campaign goes negative on television in an ad aired in Wisconsin. She criticizes Obama for not immediately signing onto debates. “Maybe he’d prefer to give speeches than have to answer questions,” the announcer says.

•CNN’s John King: “If Senator Clinton won the rest of the primaries, 55-45, she wouldn’t make it to the finish line. If Obama won the rest of the primaries, 55-45, he wouldn’t make it to the finish line.”

•Despite his remark about Chelsea being “pimped out” by the Clinton campaign, David Schuster will return to MSNBC after he serves an “indefinite” suspension, reports TalkingPointsMemo.com.

•Pres. Bill Clinton’s campaign manager in 1992, David Wilhelm, endorsed Obama in a conference call on Wednesday.

Republicans

•McCain Campaign Manager Rick Davis sent an E-mail to his staff saying that there is no mathematical way for Mike Huckabee to earn the number of delegates required for the nomination. “He now needs 950 delegates to secure the required 1,191. But in the remaining contests there are only 774 delegates available. He would need to win 123 percent of remaining delegates,” the memo says.

•Huckabee campaign spins its losses in the Potomac primary in a statement, asserting D.C. insiders drove the victories. “We lost the battle of the beltway last night, but the beltway is not my turf-the heartland is,” the campaign said.

•McCain received the endorsement of the GOP House leadership, including House Minority Leader John Boehner (R-Ohio) Wednesday, despite indications that they would remain neutral.

•Conservative talk show host Rush Limbaugh agrees to do interviews with news outlets he despises, including the New York Times. “Yes, I am talking to the enemy,” Limbaugh admitted on his blog.

•Republican voters in Virginia who said they frequently listened to conservative talk radio, voted 51 percent for Huckabee, while non-listeners voted 57 percent for McCain, reported the Associated Press.

But in Maryland, frequent listeners still supported McCain over Huckabee, 49 percent to 28 percent. In both states, the more often people listened to conservative talk radio, the less likely they were to vote for McCain.