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Andrew Daniller

Research Associate

Andrew Daniller is a research associate at Pew Research Center, where he studies public opinion on U.S. politics and policy, including political polarization, trust in government and elections, and a wide range of policy areas. He regularly presents to outside groups on these topics and discusses findings with the news media. Before joining the Center, Andrew was a post-doctoral fellow at the University of Pennsylvania, where his research focused on how news media affect views of elections and campaigns.

Publications

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featureJun 26, 2025

How Changes in Turnout and Vote Choice Powered Trump’s Victory in 2024

In this interactive feature, explore how changes between the 2020 and 2024 elections in how – and whether – people voted helped to return President Trump to office.
reportJun 26, 2025

Behind Trump’s 2024 Victory, a More Racially and Ethnically Diverse Voter Coalition

Pew Research Center’s in-depth study of its survey respondents who voted in the 2024 election examines turnout, voting patterns and demographics.
short readsJun 17, 2025

How Americans view the GOP’s budget and tax bill

Far more Americans oppose the legislation than favor it. Nearly half (49%) oppose it, while 29% favor it. Another 21% are not sure.
reportMay 20, 2025

How Much Discrimination Do Americans Say Groups Face in the U.S.?

Republicans are less likely than in 2024 to say there is discrimination against Black, Hispanic, Asian and White people.
short readsMay 6, 2025

Americans see a role for the federal government in many domains, but some large partisan divisions persist

Nearly all Americans say the federal government has a responsibility to provide a strong military and secure the nation’s borders.
short readsFeb 25, 2025

5 facts about Americans’ views of government

The public has long been divided over the role of government, but on certain issues there is bipartisan agreement that government should play a major role.
decodedOct 31, 2024

Validating 2022 voters in Pew Research Center’s survey data

Knowing who voted is critical to developing an accurate understanding of an election’s outcome.
short readsAug 29, 2024

From ‘traditional’ to ‘open-minded,’ how Americans describe themselves

Roughly six-in-ten Republicans (58%) describe themselves as traditional, but just 19% of Democrats say the same.
short readsJul 9, 2024

Republicans, Democrats continue to differ sharply on voting access

Six-in-ten Americans say any U.S. voter should have the option to vote early or absentee without having to document a reason.
short readsJun 25, 2024

Americans see little bipartisan common ground, but more on foreign policy than on abortion, guns

Across six issue areas, the share of adults who say there is at least some common ground between the parties has declined by an average of 12 points since 2023.