DAVID FRUM’S WARNINGS GO UNHEEDED: Trump Is Baiting Democrats: The president is trying to divide the House caucus and force it to fight the election on his terms. So far, it’s working. “Trump hit the Democratic Party at its point of vulnerability. He is driving it toward ever more radical outcomes: against the enforcement of immigration laws and for the acceptance of virtually all border crossers; against the bread-and-butter issues that will mobilize the voters the Democrats need and for the symbolic actions that will gratify the educated urban progressives who live in the safest Democratic districts in the country.”