Democratic frontrunner Hillary Rodham Clinton now leads former Arkansas Governor Mike Huckabee (R) 48% to 43%. Senator Clinton also leads Republican Senator Sam Brownback 49% to 41%.

Clinton moderately leads among unaffiliated voters in both match-ups.

Among women, Clinton enjoys a substantial double-digit lead over both GOP contenders. Among male voters, she is and Brownback are tied. Huckabee leads Clinton among men 48% to 43%.

In earlier polling, Clinton led Brownback by five percentage points. This is the first time Rasmussen Reports has polled a Clinton-Huckabee match-up.

Clinton has consistently led all challengers in the race for the Democratic Presidential nomination. Seventeen percent (17%) of voters believe she is Very Likely to be the next President.

However, in general election match-ups, she typically is outperformed by Illinois Senator Barack Obama (D) and former North Carolina Senator John Edwards (D). That’s largely because voters have such strong opinions—one way or the other—about the former First Lady. Forty-seven percent (47%) of American voters say they will definitely vote against Clinton if she’s on the ballot in 2008.

Hillary Clinton is now viewed favorably by 49% of likely voters, unfavorably by 51%. That includes 22% with a Very Favorable opinion and 35% with a Very Unfavorable opinion. While she is a polarizing figure nationwide, Clinton remains popular with Democrats--82% of Democrats have a favorable view of the New York Senator including 43% with a Very Favorable view.

Senator Brownback is an unfamiliar quantity to 39% of voters, and many fewer view him favorably (18%) than unfavorably (43%). Those figures are little changed in recent months.

Governor Huckabee is viewed favorably by 25%, unfavorably by 36%. Like Brownback, 39% don’t know enough to have an opinion one way or the other.

Neither Brownback nor Huckabee has yet broken through the clutter of GOP Presidential hopefuls. The race for the Republican Presidential nomination has so far been dominated by former New York City Mayor Rudy Giuliani, Arizona Senator John McCain, and former Massachusetts Governor Mitt Romney. Two men not even in the race—former Tennessee Senator Fred Thompson and former House Speaker Newt Gingrich—also outpoll the rest of the GOP field.

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