Mark Blumenthal

WASHINGTON -- Sen. Scott Brown and his Democratic challenger are nearly tied in the race for a Massachusetts Senate seat, according to a poll released Wednesday night. This new result suggests that relentlessly negative news coverage over allegations that Warren embellished her biography have had little...

WASHINGTON -- Is the presidential race between Barack Obama and Mitt Romney shaping up as a "virtual tie" in Tennessee? Is the likely Republican nominee leading the U.S. Senate race in North Dakota?

Headlines making both assertions have appeared in the last week, but both depend on reading too...

WASHINGTON -- How low can they go? A new study from the Pew Research Center released on Tuesday finds that poll response rates continue to fall "dramatically," reaching levels once considered unimaginable.

Yet the study also finds evidence that on most of the wide variety of measures tested,...

WASHINGTON -- Two years ago, President Barack Obama was not quite ready to say, as he did Wednesday, that he supports same sex marriage, but he conceded at the time that "attitudes evolve, including mine." In a question and answer session with progressive bloggers in October 2010,

WASHINGTON -- HuffPost Pollster is pleased to announce a small but significant change to our polling charts that should greatly reduce the tendency of our most closely watched charts to give undue weight to a few prominent daily tracking polls.

Our polling charts, like the one shown below...

WASHINGTON -- New polls released Thursday by Quinnipiac University showed President Barack Obama leading Mitt Romney by such narrow margins in Ohio and Florida that the pollsters characterized the two contests as "essentially tied" and "too close to call."

But when combined with other recent polls, the...

WASHINGTON -- As attention turns from the Republican primaries to the general election for president, The Huffington Post debuts a new, interactive polling map that will anchor our Election Dashboard for the rest of the campaign.

The map shows where each state stands in the contest...

WASHINGTON -- Does the Gallup Daily tracking poll have "some methodological problems," as President Barack Obama's campaign strategist David Axelrod claimed via Twitter on Tuesday? Gallup has shown Romney doing better than most other polls, but a review of the data by The Huffington Post calls into question...

Another day brings two more dueling national polls on the presidential election. A new survey by the Pew Research Center, conducted April 4 to 15, shows President Barack Obama leading Mitt Romney by just four percentage points (49 to 45 percent). Pew Research reports that Obama's lead "has...

WASHINGTON -- The Gallup Poll launched its daily tracking poll on the general election with a result that, it says, "highlights the potential closeness of this year's race" -- a near tie between Mitt Romney and Barack Obama.

But a new national poll from CNN gives...

WASHINGTON -- While some pollsters and journalists have recently argued that "voters are stupid," a new national survey shows that most Americans can, in fact, identify the relative positions of the Democratic and Republican parties on a series of important issues.

The Pew Research Center has...

WASHINGTON -- A new poll on the Massachusetts Senate race confirms what other recent surveys have shown, at least collectively. The race between Republican Sen. Scott Brown and Democratic challenger Elizabeth Warren is close and likely to stay that way for the duration of the campaign.

Seen separately, however, the...

WASHINGTON -- Mitt Romney may be just over halfway to winning the 1,144 delegates necessary to clinch the Republican presidential nomination. He's even closer to an equally important milestone: Romney has built a delegate lead nearly as big as the one held by the ultimate GOP nominee John...

WASHINGTON -- As Republicans head out to vote in Wisconsin, Maryland and the District of Columbia, the final pre-election polls show former Massachusetts Gov. Mitt Romney poised to sweep all three contests and gain at least four out of five of all delegates chosen by Tuesday's vote.

The Republican race...

WASHINGTON -- Last week's Supreme Court oral arguments on the 2010 health care law appear to have generated negative reactions to both the law and the Court, according to findings from a new Pew Research Center/Washington Post national survey measuring public reactions to last week's legal...

WASHINGTON -- New polls released over the weekend show Mitt Romney poised to win the two states, Wisconsin and Maryland, that will hold Republican presidential primaries on Tuesday. Add to those likely wins a probable Romney victory in the District of Columbia the same day, and the frontrunner stands a...

WASHINGTON -- Two new polls in Wisconsin show Mitt Romney leading Rick Santorum by a comfortable margin with just four days remaining before Tuesday's Republican primary. The results suggest that time is running out for Santorum in a state some dub as "win or go home"...

WASHINGTON -- With the U.S. Supreme Court hearing arguments on the constitutional challenge to the Affordable Care Act, polling on the health care reform law passed by Congress two years ago is once again taking center stage.

Throughout the health care reform debate, pundits and partisans have often...

WASHINGTON -- New polls show Rick Santorum leading by double digits over Mitt Romney in Saturday's Republican presidential primary in Louisiana. Romney's apparent deficit there is consistent with prior losses in other Southern states, but Louisiana's proportional allocation of convention delegates means that former Sen. Santorum (R-Pa.) is unlikely to...

The polls in Illinois do not close until 7 p.m. Central time (8 p.m. Eastern), but news organizations that subscribe to the Illinois exit poll produced by Edison Research are sharing some initial results from interviews with primary voters conducted earlier today. They intentionally avoid reporting specific estimates of which...