Voters from Ohio to California head to the polls next Tuesday in primary elections where most of the focus will be on downballot races rather than presidential. That's because President Joe Biden and former President Donald Trump just clinched their parties' nominations in the latest round of primaries. It'll be worth looking for signs of weakness in the largely ceremonial vote for the two men going forward. Ohio will also vote on Republican nominees who could help determine which party controls the House and Senate. Illinois features a GOP primary testing Trump's control of his party — again.
