President Donald Trump’s border czar, Tom Homan, said federal agents are going to pour into sanctuary cities and increase enforcement operations at places of employment as the administration looks to ramp up its deportation push. 

“We’re going to flood these sanctuary cities with federal agents. If we can’t arrest a bad guy in the jail, we’re going to arrest them on the street. We got to do it stronger. We got to do it faster,” Homan said on Fox News April 16. “If we can’t do it in the streets, then we’re going to we’re going to increase worksite enforcement operations in those sanctuary cities. We’re going to flood worksite enforcement operations.”

The president has long criticized sanctuary cities, which refer to jurisdictions with certain policies like allowing people who entered the U.S. illegally to remain without fear of arrest because of their immigration status.

Trump — who has promised to execute the largest mass deportation of undocumented migrants in U.S. history — has said he’s “working on papers to withhold all Federal Funding for any City or State that allows these Death Traps to exist!!!”

Immigration and Customs Enforcement has arrested tens of thousands of people living in the U.S. without legal status since January, when Trump took office. The Department of Homeland Security has promoted early deportation flights on military cargo planes, and has publicized images from enforcement raids on social media.