Obama Escalates Feud With His Fellow Democrats Over Pacific Trade Deal

President Barack Obama escalated a public feud over international trade with the liberal wing of his own party, a brawl that threatens to undermine one of the key goals for the White House this year.

The schism over trade widened with several testy exchanges this week between Mr. Obama and his liberal base, including remarks Friday in which the president said critics were mischaracterizing the deal.