The Washington Post reports: Support for Donald Trump has plunged as he has alienated fellow Republicans and large majorities of voters overall in the course of a month of self-inflicted controversies, propelling Democrat Hillary Clinton to a double-digit lead nationally in a new Washington Post-ABC News poll.

The survey finds sweeping unease with the presumptive Republican nominee’s candidacy — from his incendiary rhetoric and values to his handling of both terrorism and his own business — foreshadowing that the November election could be a referendum on Trump more than anything else. [Continue reading…]