Sen. Olympia Snowe's (R-ME) odds of surviving her Republican primary next year are looking slimmer by the day.

Just 33 percent of Maine GOP primary voters say they'd support Snowe's 2012 re-election bid, while 58 percent would vote for a more conservative challenger, according to a new survey by Public Policy Polling.

Often described as the most liberal Republican in the Senate (if not Congress in general), Snowe has taken tremendous heat from conservatives for supporting the Obama White House and Democrats on initiatives like the stimulus and financial regulatory reform.

Though fairly popular overall in her predominantly liberal state, Snowe could suffer a landslide defeat in the primaries, as poll after poll shows that Maine GOP voters view her as too ideologically flaky for them.

Fifty-eight percent of usual Republican primary voters in the state consider her "too liberal," while 37 percent say she's "about right."

Worse yet, only 27 percent of those voters think she should be a Republican. Thirty-three percent say she should be a Democrat, and 34 percent believe she'd be more apt as an independent.

Two tea party challengers have jumped in the race for Snowe's seat -- Andrew Ian Dodge and Scott D'Amboise. Neither has the name recognition or support to poll particularly well again the three-term senator, who served in the House for 16 years and is a former First Lady of Maine.

The PPP poll surveyed 434 "usual Maine Republican primary voters" from March 3-6, and has a margin of error of +/- 4.7 percentage points.

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