Bomb threats to New Jersey polling stations, a voter roll mishap in Pennsylvania potentially affecting thousands of voters and warnings by President Donald Trump against California’s mail balloting system are marking the final day of voting in an off-year election with several nationally prominent races. Voting otherwise appeared to go smoothly Tuesday across the U.S., as voters cast ballots in the first significant election since Trump returned to the White House. Trump often warns of election fraud and did again Tuesday, posting to social media that voting on California's congressional redistricting measure was “RIGGED.” State officials dismissed Trump's accusations as baseless.