Michigan's Dem. Rep. Stupak Announces Retirement

Congressman Bart Stupak of Michigan says he's retiring this year because "it's time to begin a new and exciting chapter."

Stupak said during a news conference Friday that he made the decision within the last 36 hours not to seek a 10th term. He says he felt his main legislative goal - a national health care overhaul - was accomplished.

The 58-year-old anti-abortion Democrat had been targeted for defeat by tea party activists for his crucial role in securing House approval of the health care overhaul.

Stupak says he could have won re-election. He insists he wasn't being chased from the race by the Tea Party Express, which is holding rallies this week in his northern Michigan district calling for his ouster.