Builders warn Trump’s mass deportation plan would drive up home costs NBC NewsTrump’s mass deportation plans would be costly. Here’s why CNNTrump is promising deportations under the Alien Enemies Act of 1798. What is it? NPRFact check: Can Trump use a 1798 law to carry out mass deportations? Al Jazeera EnglishTrump’s plan to deport millions of immigrants would cost hundreds of billions, CBS News analysis shows CBS News