Florida Gov. Ron DeSantis has been locked in a contentious fight with the Republican-dominated state Legislature, which tried to strip away some immigration authority.

On Monday, the Florida Highway Patrol conducted a joint operation with federal immigration officers in Jefferson County to round up 12 people believed to be in the country illegally, one of a number of raids performed around the country as the Trump administration ramps up its plans for mass deportation.

Florida Gov. Ron DeSantis has promised to veto a sweeping immigration bill. It’s the latest escalation in a statehouse showdown between DeSantis’ office and the Republican leaders, who have sparred over whose proposals would best carry out President Donald Trump’s immigration crackdown.