Biden to tap Trump foes for immigration posts amid border surge Biden has selected Chris Magnus, the police chief from Tucson, Ariz., to lead U.S. Customs and Border Protection. By Jordan FabianBloomberg Share President Joe Biden plans to announce nominations for two key immigration jobs as the administration confronts a historic influx of migrants on the U.S.-Mexico border, the White House announced on Monday. Biden has selected Chris Magnus, the police chief from Tucson, Ariz., to lead U.S. Customs and Border Protection. He’d been a critic of the Trump administration’s anti-immigration policies. Biden also intends to nominate Ur Jaddou, an immigrant-rights advocate who was also a critic of former President Donald Trump’s policies, to lead U.S. Citizenship and Immigration Services. The agency will implement Biden’s rollback of some of Trump’s hard-line visa policies.