WEST PALM BEACH, Fla. (AP) — Donald Trump, whose single turbulent term in the White House transformed the Republican Party, tested the resilience of democratic institutions in the U.S. and threatened alliances abroad, will lead the GOP in a third consecutive presidential election after clinching the nomination Tuesday. With wins in Georgia, Mississippi and Washington state, Trump surpassed the 1,215-delegate threshold needed to become the presumptive Republican nominee. He’ll formally accept the nomination at the Republican National Convention in July, by which point he could be in the remarka…