COLUMBIA, S.C. (AP) — South Carolina voters return to the polls Tuesday to finalize the Republican nominee for governor in a runoff election that has become a bruising grudge match between two of the state’s leading politicians. President Donald Trump initially endorsed Lt. Gov. Pamela Evette over state Attorney General Alan Wilson, and neither candidate came close to securing the majority needed to win the nomination outright in the June 9 primary. But as Wilson seemed to gain momentum heading into the runoff, Trump on Friday said he was endorsing both candidates, throwing a curveball to voters looking to the president for guidance.Trump’s endorsement has been the deciding factor in many primaries this year, but not always in governor races, and his choices in Iowa and Georgia fell short this month. Voters for months have been inundated with television advertising, mailers and billboards in the contest, which began more than a year ago as candidates clamored for attention in South Carolina’s first truly open governor’s race in more than a decade. And with Trump remaining popular in the state — despite some nationwide wavering over issues including the economy — proximity to the president has been a campaign feature for all of the Republicans vying for the state’s top office.