President-elect Donald Trump plans to launch a mass deportation operation targeting millions of immigrants living in the U.S. illegally and with temporary protections once he takes office on Jan. 20, a challenging initiative that could split apart families and affect U.S. businesses.

The US Senate passed a bipartisan bill early Saturday to increase Social Security benefits for close to 3 million federal, state and local public sector workers, which includes firemen, policemen and teachers.