WASHINGTON (AP) – Three leading legal scholars testified at a congressional House hearing that President Donald Trump’s attempts to have Ukraine investigate Democratic rivals are grounds for impeachment. Yet a fourth expert called by Republicans warned against rushing the process.áMeanwhile, Speaker Nancy Pelosi tested whether House Democrats are willing to take that momentous next step. “Are you ready?” she asked behind closed doors. The answer, according to those present, was a resounding yes. That’s crucial because of the likely political aftermath in elections next year. Though no date has been set, the Democrats are charging toward a Christmastime vote.