Shit.
Minnesota Democratic sources said they believe Sen. Mark Dayton, D-Minn., will announce today that he will not seek reelection to a second term in the Senate.
Two knowledgeable Democratic sources said Dayton was believed to have made the decision because of a series of events that darkened his reelection prospects.
A new Star Tribune Minnesota Poll showed his approval rating had plummeted to 43 percent, and Republicans have already made the freshman Democrat their top target for ouster in next year's election.
One source said Dayton told his staff in Minnesota and Washington of his decision shortly before noon today.
That was going to be the toughest seat to hold. Hopefully this is a blessing in disguise, giving us a Democrat candidate without Dayton's baggage.
But it's tough to surrender the advantages of incumbency.