Lee Francis Cissna, director of U.S. Customs and Immigration Services, testifies before the House Homeland Security Committee's Border and Marine Security subcommittee on Capitol Hill on May 22, 2018 in Washington, DC. But last month, a USCIS official sought to tamp down reports of any tension with the White House. "USCIS Director Cissna is relentlessly focused on advancing President Trump's agenda forward to the maximum extent permitted under the law and to say otherwise is false," said a USCIS official in a statement. "I spoke about the competence of people I know," Grassley said of his message to White House officials. "It would be a huge mistake for the administration to get rid of Director Cissna," said Rosemary Jenks, director of government relations at NumbersUSA, a group that supports reduced immigration last month.

Source: CNN May 24, 2019 22:01 UTC