Voters in five states went to the polls Tuesday in primary elections, with competitive Senate races in Michigan and South Carolina drawing the most attention. Michigan Democrats are choosing between Haley Stevens and Abdul El-Sayed for a Senate seat, while South Carolina Republicans are picking a nominee to replace Lindsey Graham. The South Carolina debate exposed divisions within the GOP, as five candidates clashed over the filibuster, the Iran war, and data centers. The primaries are being held in Kansas, Michigan, Missouri, Virginia, and Washington. The Michigan contest between Stevens and El-Sayed has become the focus of the day's voting, with both candidates vying for the Democratic nomination. In South Carolina, the Republican field's disagreements over key issues highlighted fissures in the party as it seeks to hold onto the Senate seat. Results were pending as ballots were counted across the five states.