Brazil's Senate slogged toward a historic vote on impeaching President Dilma Rousseff early Thursday that would likely end 13 years of government by her left-leaning party amid a spate of crises besetting Latin America's largest nation. If a simple majority of the 81 senators voted in favor, Rousseff would be suspended from office and Vice President Michel Temer would take over for up to six months pending a Senate trial that would decide whether to remove her from office permanently. Although Senate President Renan Calheiros had said he wanted the vote to take place Wednesday night, the sluggish pace of the debate made that impossible. By midnight, after 15 hours of debate, only 40 of the...