In head-to-head matchups, former Vice President Joe Biden ran strongest against Trump, leading the president 51% to 43%, fueled by solid support from women and independents. Other matchups against South Bend, Ind., Mayor Pete Buttigieg and U.S. Sens. Kamala Harris, Bernie Sanders and Elizabeth Warren are much tighter. The findings provide an early snapshot of the developing race in Georgia one year out from the election and strengthens claims that the state will be a 2020 battleground. *** For Democrats, the most encouraging finding might be the shift of independents, a largely white bloc of voters that has traditionally leaned...