Maria worked cleaning schools in Florida for $13 an hour. Every two weeks, she’d get a $900 paycheck from her employer, a contractor. Not much — but enough to cover rent in the house that she and her 11-year-old son share with five families, plus electricity, a cellphone and groceries. In August, it all ended. […]

President Donald Trump’s sweeping crackdown on immigration is throwing foreigners out of work and shaking the American economy and job market.