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Mark Blumenthal
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Mark Blumenthal is the senior polling editor of the Huffington Post and the founding editor of Pollster.com.

The Huffington Post acquired Pollster.com in July 2010, but HuffPost Pollster’s mission remains the same: To publish and aggregate poll results in uniquely interactive charts and to provide daily running commentary and analysis that explains, demystifies and critiques political polling.

From 2006 to 2010, Pollster.com attracted over 28 millions visits and over 90 million page views. Time named Pollster.com one of the 50 Best Websites for 2009, a list that also included Google, YouTube, Facebook and Twitter. Pollster.com was partly an outgrowth of Blumenthal's Mystery Pollster blog, which he started in September 2004.

In May of 2007, along with Pollster.com co-creator Charles Franklin, Blumenthal received the Warren J. Mitofsky Innovators Award for Pollster.com from the American Association for Public Opinion Research. In 2005, the National Council on Public Polls awarded Blumenthal and the MysteryPollster blog a special citation for its work explaining polls to the Internet reader.

From 2008 to 2010, Blumenthal served as polling analyst for The National Journal, were he wrote a weekly column for NationalJournal.com

Blumenthal worked in the political polling business for more than 20 years, conducting and analyzing political polls and focus groups for Democratic candidates and market research surveys for major corporations. His experience includes work with pollsters Harrison Hickman, Paul Maslin, Kirk Brown, Celinda Lake, Stan Greenberg and 15 years with his former partners David Petts and Anna Bennett in the firm formerly known as Bennett, Petts and Blumenthal (BPB). In January of 2007, he left BPB to devote full time to Pollster.com.

His academic background includes a Political Science degree from the University of Michigan and course work towards a Masters degree at the Joint Program in Survey Methodology (JPSM) at the University of Maryland. He has also served as a guest lecturer at the Communications School at American University and at training seminars sponsored by EMILY's List, the Democratic National Committee and the National Democratic Institute for International Affairs. He served as Communications Chair of the American Association for Public Opinion Research (AAPOR) from 2007 to 2008.

Entries by Mark Blumenthal

Why It's Hard To Predict Who Would Get Blamed For A DHS Shutdown

(80) Comments | Posted February 27, 2015 | 7:30 PM

On Friday afternoon, House Republicans said no to a funding bill that would have kept the Department of Homeland Security in business for another three weeks. If DHS suffers a shutdown at midnight, does that mean Americans will blame Republicans?

Initial polling suggests they are a more likely...

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HUFFPOLLSTER: Democrats Win On Image, Republicans Even Or Better On Issues

(7) Comments | Posted February 27, 2015 | 8:19 AM

Democrats have a more positive image, but Republicans are stronger on key issues. CPAC tries to guess the next president through a straw poll. And a pie chart finds its doppelgänger. This is HuffPollster for Friday, February 27, 2015.

AMERICAN SPLIT ON POLITICAL PARTIES - Pew Research: "President Obama’s job...

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HUFFPOLLSTER: Clinton Has Big Early Lead In Iowa

(175) Comments | Posted February 26, 2015 | 8:09 AM

Hillary Clinton's massive early Iowa lead is a big change from 2008. Walker's polling surge may persist if it triggers endorsements from party leaders. And few young Americans perceive measles as a threat. This is HuffPollster for Thursday, February 26, 2015.

CLINTON LEADS IN IOWA - Quinnipiac University: "With 61...

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HUFFPOLLSTER: Walker Takes Early Lead In Iowa Caucus

(141) Comments | Posted February 25, 2015 | 8:14 AM

Scott Walker has the early lead in Iowa, as have many other candidates in the past. Support for the use of military force against ISIS grows. And Americans value keeping DHS open over opposing Obama on immigration. This is HuffPollster for Wednesday, February 25, 2015.

WALKER LEADS IOWA CAUCUS POLL...

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Poll: Keeping DHS Open More Important Than Opposing Obama On Immigration

(26) Comments | Posted February 24, 2015 | 4:32 PM

Americans care more about keeping the Department of Homeland Security open than about rolling back President Barack Obama's executive actions on immigration, a new HuffPost/YouGov poll finds -- but most are barely following the political battle in Congress.

By an 8-point margin, 45 percent to 37 percent, Americans...

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HUFFPOLLSTER: Support For Legal Marijuana Remains Strong In Colorado

(4) Comments | Posted February 24, 2015 | 7:59 AM

Support for legalized marijuana remains strong in Colorado. Most Americans agree that Muslims face discrimination. And a growing minority support sending arms to Ukraine. This is HuffPollster for Tuesday, February 24, 2015.

COLORADO VOTERS STILL SUPPORT LEGAL POT - Quinnipiac University: "Colorado voters still strongly support legalization of recreational marijuana...

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HUFFPOLLSTER: Americans Back Obama's Tax Proposal On Capital Gains

(113) Comments | Posted February 23, 2015 | 7:55 AM

Americans support a proposal to raise capital gains taxes on the wealthy. Israel maintains a high favorable rating. And the source of massive batch of private GOP polling data is revealed. This is HuffPollster for Monday, February 23, 2015.

MOST SUPPORT OBAMA'S PROPOSAL TO RAISE CAPITAL GAINS TAXES - Stephen...

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HUFFPOLLSTER: Middle Class Sees Opportunities Decline

(11) Comments | Posted February 20, 2015 | 8:11 AM

Americans see less opportunity for the middle class, but remain divided on solutions. Worries about ISIS grow. And 2016 looks different for Hillary Clinton. This is HuffPollster for Friday, February 20, 2015.

A SHIFT ON INEQUALITY - CBS News: "[D]espite some positive economic assessments, 71 percent say that over the...

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HUFFPOLLSTER: Who Represents The Future In 2016?

(29) Comments | Posted February 19, 2015 | 7:50 AM

Republicans are just beginning to consider their choices for 2016. Women see Hillary as representing the future rather than the past. And uncertainty and misconceptions about Common Core standards are widespread. This is HuffPollster for Thursday, February 19, 2015.

WHO WOULD YOU CONSIDER IN 2016? - Sarah Dutton, Jennifer De...

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HUFFPOLLSTER: Obama's Ratings Increase On Economy, Not Terrorism

(22) Comments | Posted February 18, 2015 | 7:52 AM

The economy is boosting President Obama, but his rating on terrorism remains low. Hillary Clinton has an early lead in three battleground states, but the models say the race will get close. And in the event of a DHS shutdown, Americans would cast more blame on Republicans. This is HuffPollster...

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HUFFPOLLSTER: Christie Trails Clinton By 23 Points In New Jersey

(44) Comments | Posted February 17, 2015 | 8:02 AM

Hillary Clinton enjoys a huge lead over Chris Christie in his home state. Americans are unhappy with how Obama is handling ISIS. And it's all within the margin of error for Republicans in the early primary states. This is HuffPollster for Tuesday, February 17, 2015.

CHRISTIE TRAILS CLINTON IN NEW...

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HUFFPOLLSTER: Americans Support Granting Obama Military Authorization On ISIS

(4) Comments | Posted February 13, 2015 | 8:44 AM

A majority of Americans support giving Obama authorization to use force against ISIS. Voters think Scott Walker would make a better president than Jeb Bush. And Christie's support sinks in New Jersey. This is HuffPollster for Friday, February 13, 2015.

A MAJORITY OF AMERICANS SUPPORT AUTHORIZATION OF FORCE AGAINST ISIS...

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HUFFPOLLSTER: Political Spending Becomes More Transparent Thanks To A New Tool

(0) Comments | Posted February 12, 2015 | 8:31 AM

Open Secrets releases a new tool that tracks spending on polls and other campaign expenses. Americans see growth in economy but little personal change. And immigration reform gets strong support. This is HuffPollster for Thursday, February 12, 2015.

During the 2014 campaign cycle, the top polling firms took in over...

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HUFFPOLLSTER: Americans' Economic Outlook Continues To Rise

(4) Comments | Posted February 11, 2015 | 7:52 AM

Good news about gas prices leads an improving economic outlook. Only a third of Americans consider Brian Williams trustworthy. And a majority says the measles now pose a bigger threat to Americans than Ebola did last year. This is HuffPollster for Wednesday, February 11, 2015.

VIEWS OF ECONOMY GROW MORE...

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HUFFPOLLSTER: Large Majority Trusts Childhood Vaccines

(9) Comments | Posted February 10, 2015 | 8:04 AM

A huge majority considers the MMR vaccine safe for children. The emerging Democratic domestic policy agenda focuses on parents. And Hillary Clinton's advantage is hiding in plain sight. This is HuffPollster for Tuesday, February 10, 2015.

NO PARTISAN DIFFERENCES IN VACCINE VIEWS - Pew Research: "An 83% majority of the...

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HUFFPOLLSTER: Growing Economy Good News For Obama

(96) Comments | Posted February 9, 2015 | 8:25 AM

AP-GfK finds growing optimism about the economy and the president. A new NH poll continues to show a competitive GOP field. And CQ Researcher dives deep into the state of political polling. This is HuffPollster for Monday, February 9, 2015.

GROWING APPROVAL FOR ECONOMY AND PRESIDENT OBAMA - Emily Swanson:...

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HUFFPOLLSTER: Poll Finds New Hampshire Mostly Uncertain About 2016

(3) Comments | Posted February 6, 2015 | 7:55 AM

New Hampshire voters have yet to tune in to 2016. Investigative journalists suspect the government is spying on them. And most people don't really care about politicians' high school drug use. This is HuffPollster for Friday, February 6, 2015.

NEW 2016 NEW HAMPSHIRE POLL FROM WMUR/UNH - James Pindell: "The...

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HUFFPOLLSTER: Why Americans Support Tax Hikes On The Wealthy

(130) Comments | Posted February 5, 2015 | 8:21 AM

Voters in three key battlegrounds support tax hikes on the rich. The share of adults living in middle income households has narrowed. And Hillary Clinton's support is greater now than in 2007. This is HuffPollster for Thursday, February 5, 2015.

BATTLEGROUNDS WANT CHANGE IN DIRECTION, FAVOR TAX HIKE FOR WEALTHY...

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HUFFPOLLSTER: Early Polling Shows Competitive GOP Field

(22) Comments | Posted February 4, 2015 | 8:20 AM

Early 2016 primary polling shows a wide-open Republican race. We weigh in on the pollster debate about the 'margin of error.' And social media platform use varies by race. This is HuffPollster for Wednesday, February 4, 2015.

NEW EARLY PRIMARY POLLS IN FL, OH & PA - Quinnipiac University: "Former...

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The 'Margin Of Error' Is More Controversial Than You Think

(5) Comments | Posted February 3, 2015 | 1:48 PM

If you read polls in the news, you're probably familiar with the term "margin of error." What you may not know is that pollsters disagree fiercely about when it should be used.

In an actual debate last week, sponsored by the do-it-yourself sampling firm Peanut Labs, polling experts...

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