Alaska's Lisa Murkowski: No. 7 on list of ousted incumbents?

Sen. Lisa Murkowski (R) of Alaska could become the seventh congressional incumbent to lose a primary in 2010 if her too-close-to-call race with 'tea party' favorite Joe Miller stays in Mr. Miller's favor.

4. Rep. Parker Griffith (R) of Alabama

Jay Reeves/AP
Rep. Parker Griffith (R) of Alabama discusses his switch to the Republican Party in 2009. He was a Democratic congressman for less than a year.

The other party-switcher in the list of defeated incumbents this year, Mr. Griffith became a Republican in December, less than a year after he entered Congress as a freshman Democrat. Griffith was not a reliable vote for the majority before the switch; he voted against every major Democratic initiative, from the stimulus package to a cap and trade plan for carbon emissions. And he ruffled feathers – while still a Democrat – by joke-offering Democratic leader Nancy Pelosi a gift card to a mental health facility in a speech.

Griffith won support from the National Republican Congressional Committee, but Madison County Commissioner Mo Brooks was supported by more constituents in Alabama's Fifth District. Mr. Brooks won the three-way June 1 primary with 51 percent of the vote. Griffith only got 33 percent in his first, and perhaps last, race as a Republican.

For No. 3 on the list, click right arrow

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