JUDY WOODRUFF:

Meanwhile, the European Union voiced regret about President Trump's move.

The president formally launched a new commission on opioid abuse today. He heard from recovering addicts and others. The group included New Jersey Governor Chris Christie, who will chair the commission.

Meanwhile, in Newark, two former aides to Christie were sentenced to prison for causing huge traffic jams on a major bridge. The move was aimed at a Democratic mayor who'd refused to endorse Christie.

The president's daughter Ivanka said today that she will serve as an unpaid federal employee. In a statement, Ivanka Trump said she's taking that step to address ethics questions that were raised after an earlier announcement that she'd be an informal adviser to her father, with an office in the White House. As a federal employee, she's obliged to comply with government ethics rules.

And, on Wall Street, energy stocks were up, banks stocks were down, and the indexes were mixed. The Dow Jones industrial average lost 42 points to close at 20659. The Nasdaq rose 22 points, and the S&P 500 added two.