Washington (CNN) Democratic presidential rivals Bernie Sanders and Hillary Clinton are running neck-and-neck in California, ahead of Tuesday's primary that will be the last major contest of the primary race.

Sanders continues to win the support of a majority of younger voters and men, while Clinton is dominating among older voters and women -- a trend that has remained true throughout most of the nominating contests.

The poll also finds Clinton and Sanders easily beating Donald Trump in California in a general election matchup. Clinton would beat Trump 55%-31% and Sanders would beat him 62%-28%, according to the poll.

The poll surveyed 557 likely Democratic voters between May 29-31 and the results have a margin of error of plus or minus 4.2 percentage points and 1,833 registered voters for the general election matchups with a margin of error of plus or minus 2.3 percentage points.