Most U.S. senators appointed since 1990 have run to keep their seat – and most have won
The U.S. Senate has had 43 appointed members since 1990, and 27 of them (63%) have run to keep their seat.
Numbers, Facts and Trends Shaping Your World
Read our research on:
More Leaders
All
More Leaders
Publications
-
-
Canadians and Mexicans now view China more positively than the U.S.
Canadians and Mexicans also now view Chinese President Xi Jinping more positively than Trump, even as relatively few people in both countries have confidence in the two leaders.
-
Mexicans view President Claudia Sheinbaum favorably, but less so than in 2025
Mexican President Claudia Sheinbaum remains popular, but her favorability has dropped to 64%. Views of the economy and democracy are also declining.
-
About a third of U.S. Democrats like political leaders who identify as democratic socialists
Democrats’ views on democratic socialists also differ by race and ethnicity, age, education, income and political engagement.
-
About a third of UN member countries have ever had a woman leader
Women are currently the head of government in 13 of the 193 member countries of the United Nations.
-
Americans view Trump, Vance and congressional leaders in both parties more negatively than positively
Democrats now express more disapproval of their congressional leadership than they have in several decades.
-
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.
-
Biden granted more acts of clemency than any prior president
Former President Joe Biden granted 4,245 acts of clemency during his four-year tenure in the White House, more than any previous president on record.
-
How news influencers talked about Trump and Harris during the 2024 election
Most news influencers published posts about both candidates in summer and fall, and identical shares were more critical than supportive of each.
-
How Biden compares with other recent presidents in appointing federal judges
As Biden’s term draws to a close, here’s a look at the federal judges the 46th president appointed during his four years in the White House.
