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Yet no fewer than eight of the retirees handed their seats to Republicans: They include Ben Nelson, of Cornhusker Kickback fame, who deprived his state of the pleasure of returning him to private life in 2010. After five terms, Jay Rockefeller was increasingly out of step with West Virginia, not least on ObamaCare. Max Baucus (Montana), Tim Johnson (S.D.) and Byron Dorgan (N.D.) would have had rough rides had they tried to stick around.
When they got the chance, voters dumped eight ObamaCare incumbents who dared to seek re-election. In addition to Ms. Landrieu, four are moderate-in-name-only Democrats who went along with President Obama's lurch to the left: Mark Begich (Alaska), Kay Hagan (North Carolina), Blanche Lincoln and Mark Pryor (Arkansas).
But conventional liberals like Russ Feingold (Wisconsin) and Mark Udall (Colorado) also lost in states Mr. Obama carried twice. In Pennsylvania, Arlen Specter left the GOP to vote for ObamaCare after Republican Pat Toomey announced he'd run against him in a primary. Specter, since deceased, lost the Democratic primary to Joe Sestak, who lost to Mr. Toomey in two degrees of ObamaCare separation.