See the latest Pew Research Center data on U.S. political party affiliation, including trends in voting and elections.

Pew Research CenterMay 9, 2008

The Widening Gap

While Barack Obama’s appeal to the young coincides with their increasing Democratic alignment, older voters do not show the greater allegiance to the GOP that might explain their relative reluctance to support him.

Pew Research CenterApril 28, 2008

Gen Dems: The Party’s Advantage Among Young Voters Widens

Trends in the opinions of America’s youngest voters are often a barometer of shifting political winds. And that appears to be the case in 2008. Use the interactive tool to track generational differences in party affiliation over time.

Pew Research CenterMarch 20, 2008

Fewer Voters Identify as Republicans

The balance of party identification in the U.S. electorate now favors the Democratic Party by a decidedly larger margin than in either of the two previous presidential election cycles including in some key swing states.

Pew Research CenterFebruary 21, 2008

The Hispanic Vote in the 2008 Democratic Presidential Primaries

As the Democratic nomination contest heads for a showdown in Texas on March 4, Latinos may be a pivotal constituency in a state where they make up a quarter of the electorate.

Pew Research CenterFebruary 11, 2008

Young Voters in the 2008 Presidential Primaries

Beyond the vote, the exit polls point to interesting differences — and similarities — between younger and older Democratic voters.