Seven primary races to watch on Tuesday

May 17 will mark the single busiest primary day to date this year, as voters in several states head to the polls to cast their ballots in some of the cycle’s biggest nominating contests.

At stake are hotly contested Senate nominations in crucial battlegrounds like Pennsylvania and North Carolina. The primaries will also be the latest test of former President Donald Trump’s sway over GOP voters as he weighs another bid for the White House in 2024.