Moskowitz received about 64% of the vote, compared with roughly 36% for Oliver Larkin, giving the incumbent congressman a victory of nearly 30 percentage points.
Larkin, who was backed by the Democratic Socialists of America, made opposition to U.S. support for Israel a major part of his campaign. He accused Israel of committing genocide in Gaza and called for ending American military aid to the Jewish state.
Moskowitz, the grandson of Holocaust survivors, has emerged as one of the Democratic Party’s strongest supporters of Israel in Congress. Pro-Israel groups also rallied behind his campaign, with AIPAC helping raise hundreds of thousands of dollars for his reelection effort.
The victory gives Moskowitz the Democratic nomination, but does not yet return him to Congress. He will face the Republican nominee in November for the newly redrawn South Florida district, which has a large Jewish population and is expected to be highly competitive.
The November race could also play a role in determining which party controls the U.S. House, where the majority remains closely divided.