David Obey, a major power in the Democratic Party and chairman of the powerful House Apprpriations Committee is retiring.  He is a left-wing Congressman who may have shifted too far to the left for his increasingly right-leaning state (Senator Feingold is not faring well). Obey will be giving up a powerful position as chairman of the House Appropriations Committee.

When POLITICO contacted Sean Duffy, a leading Republican candidate for Obey's seat back in Wisconsin, he was incredulous.

"Is this a prank call?" Duffy asked.

When Duffy was assured that the news was real, his phone started ringing on the other line: "I've got to go. I'm blowing up."

Duffy, best-known nationally for his appearance on MTV's Real World a decade ago, is the Ashland County district attorney.

"This move clears the way for Duffy to be the next congressman from northwest Wisconsin. His campaign has gotten national attention and he's running a very well-oiled grassroots machine," said National Republican Congressional Committee spokesman Tom Erickson.

Democrats claim a deep bench in the sprawling district, with several state legislators expected to seriously consider jumping in. They include: state senators Pat Kreitlow, Julie Lassa, Russ Decker and Jim Holperin, along with state Reps. Donna Seidel, Ann Hraychuck and Amy Sue Vruwink.

Obey's chairmanship of the Appropriations Committee allowed him to have a near-stranglehold on the rural northwest Wisconsin district, but his comfortable re-election victories belie the competitive nature of the seat. While President Obama carried the district with 56 percent of the vote, John Kerry barely won it by just over 5,000 votes in 2004.