The first general election since Donald Trump became president is underway, with several high-profile races on the ballot.
The results of these contests will be seen as either a repudiation or approval of Trump's agenda, particularly in key races for governor in Virginia and New Jersey, mayor of New York City, and a proposition in California to redraw congressional district boundaries.
The results will be heralded by the victors as either a major repudiation or resounding stamp of approval of his second-term agenda.
More than half of the states will hold contests on Tuesday, making this a significant election.
Author's summary: Election to test Trump's agenda.