Delaware Republican Running for Senate

Rep. Mike Castle (R-Del.), the last major Republican office-holder in the very blue home of Vice President Joe Biden, is set to announce whether or not he’ll run for the U.S. Senate in 2010. Politico reports that he’s in.

As I noted last week, Castle’s numbers have been softer than you’d expect from a pol who hasn’t lost an election in this state since he entered politics in the 1960s. He ran 24 points ahead of the McCain-Palin ticket last year; he’s only leading likely Democratic candidate Beau Biden (son of the vice president, state attorney general) by five points. Nonetheless, a seat that Republicans had no chance at will become a seat they have a real chance at.