The U.S. military is beefing up its presence at the southwest border as part of President Donald Trump's crackdown on unauthorized immigration. Is that an unusual change?

The Army bill was finally passed by the Senate this afternoon, after having spent nearly the whole day in debating the last section, which prohibits the use of the Army as a posse comitatus ...

Critics of President-elect Trump’s plan to enlist the military to help deport illegal immigrants claim it will violate the Posse Comitatus Act of 1878. But that might not be the case.