BUENA VISTA, Ga. – Across the grounds of a south Georgia courthouse, scores of masked and socially distanced voters bowed their heads in prayer for the 260,000-plus Americans who have died from the coronavirus.Then Democratic Senate hopeful Raphael Warnock took the microphone, promising to push for more economic aid for businesses and people affected by the pandemic and touting Democratic plans to combat long-standing racial and wealth disparities highlighted by the crisis.A day earlier, Vice President Mike Pence campaigned with Warnock’s opponent, Sen.