New Gallup polling data released in the second quarter of 2026 indicates a significant shift in U.S. party identification, with Democrats holding a 10-point advantage over Republicans in party affiliation. The findings mark the largest Democratic lead in Gallup’s quarterly tracking since at least 2015.
Key findings from the survey:
- 49% of Americans identified as Democrats or leaned toward the Democratic Party, compared to 39% who identified as Republicans or leaned Republican.
- 31% of Americans identified outright as Democrats, while 25% identified as Republicans, with 44% identifying as independents.
The data reflects a reversal from the end of 2024, when Republicans and Republican-leaning independents held a 47% to 43% advantage over Democrats. The current Democratic advantage has remained consistent since the first quarter of 2026, when the margin was five points.
Trends in independent voter leanings
Among respondents who considered themselves neither Republican nor Democrat, 49% leaned toward the Democratic Party, compared to 39% who preferred the Republican Party. This represents a four-percentage-point increase in Democratic leanings since the first quarter of 2025, when former President Donald Trump returned to the White House for a second term.
Historical context and midterm implications
The latest figures show Democrats holding their largest advantage in party identification since 2008, according to reporting by the New York Times. Analysts note that midterm elections often serve as a referendum on the party in power, with the president’s party historically losing seats during these contests. Currently, Republicans hold a narrow majority in both the House and Senate.
Cook Political Report indicates that Democrats are favored to win control of the House, though Republicans retain a path to maintaining their majority. The polling data aligns with other recent surveys showing Democrats with an advantage on key electoral measures ahead of the November midterms.
Policy and political backdrop
The shift in party identification occurs amid ongoing political challenges for Trump, whose approval ratings remain near historic lows. His economic policies, including tariffs, have faced broad unpopularity, and the Supreme Court recently limited their scope. Additionally, the prolonged conflict with Iran, a central initiative of his second term, continues without a clear resolution, with polls showing most Americans oppose the war.
Republican lawmakers and strategists have warned of potential electoral setbacks, with some describing the current polling trends as a potential “shellacking” for GOP candidates. Despite campaigning on cost-of-living concerns that emerged under former President Joe Biden, inflation has remained above the Federal Reserve’s 2% target since the conflict in Iran began in February 2025. Voters have cited rising costs and disruptions to shipping through the Strait of Hormuz as key factors in their declining approval of the president.
Party identification trends among registered voters
The Gallup data also highlights shifts in outright party identification:
- 31% of Americans now identify as Democrats, up from 28% when Trump took office.
- 25% of Americans identify as Republicans, a decrease from previous quarters.
- The majority of voters continue to identify as independents, though the percentage has fluctuated throughout Trump’s second term.
The findings underscore the evolving political landscape ahead of the midterm elections, with Democrats holding a significant advantage in party affiliation for the first time in over a decade.