Are Democrats exiting the sinking ship?

Comes the news that Democratic Congressman Dennis Moore of the 3rd district of Kansas is not running for reelection. Interesting. Congressman Moore was reelected by a 56%-40% margin in 2008, and Barack Obama carried his district 51%-48%, while losing the other three congressional districts in Kansas.

There could be many plausible reasons for Moore to retire from Congress. He turns 65 in 2010 and at the end of his term will have served 12 years in Congress. He served 12 years as Johnson County District Attorney in 1976-88, and so he’s devoted more than half his working lifetime to public service. Serving in Congress means having to go back and forth between your district and Washington all the time (and a quick look at a travel website shows only two flights per day between Reagan National and Kansas City International), constantly being reachable by your constituents, etc., etc.

All that said, this still seems an ominous sign for congressional Democrats. ...