54 percent of Americans have an unfavorable view of Sen. Clinton, up from 40 percent a few days after she won the New Hampshire primary.

From The Washington Post:

[According to a new Washington Post-ABC News poll, today] more Americans have an unfavorable view of [Sen. Hillary Clinton] than at any time since The Post and ABC began asking the question, in 1992.

In the new poll, 54 percent said they have an unfavorable view of Sen. Clinton, up from 40 percent a few days after she won the New Hampshire primary in early January.

Overall, 51 percent of Democrats and Democratic-leaning independents said they would prefer to see Obama win the nomination and face Sen. John McCain, the presumptive Republican nominee, in the November general election; 41 percent would rather have Clinton atop the Democratic ticket. Post-ABC polling just before Clinton won the Ohio primary and the popular vote in the Texas primary on March 4 showed nearly the same results.

In hypothetical general-election matchups, Obama holds a slim, five-point lead over McCain, while McCain is three points ahead of Clinton, which is within poll's margin of error. But in the past six weeks, McCain has gained ground on each of his potential rivals.