POLITICS
03/18/2010 05:12 am ET Updated May 25, 2011

GOP Under Mounting Pressure From Underdogs' Senate Bids

Underdogs trying to ride a wave of anti-establishment fervor are mounting challenges to the Republican Party's hand-picked Senate candidates in several states.

The trend suggests that conservative surges in a New York House race and a Senate primary in Florida were not isolated incidents and pose a dilemma for the GOP. Party leaders have stopped endorsing candidates, and in some cases establishment candidates have shifted to the right.

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