The First Big Elections of the New Trump Era Are Today. Here’s What to Look For.

Voters on Tuesday will deliver an early judgment on President Trump’s administration in the first set of coast-to-coast elections since he began his turbulent second term.

Contests for mayor of New York, governor of New Jersey and Virginia, and a redistricting ballot measure in California have revolved to varying degrees around how the Democratic Party should rebuild itself and respond to Mr. Trump’s power play in Washington.