Donald Trump, who won the U.S. presidential election on Wednesday, has vowed to investigate or prosecute political rivals, election workers and left-wing Americans if he becomes president again.

Trump has called for investigations into Democratic presidential candidate Vice President Kamala Harris, President Joe Biden, former President Barack Obama and Liz Cheney, a former U.S. representative who is one of the most high-profile Republicans to turn against Trump.

At a September rally in Pennsylvania, Trump said Harris was responsible for the "biggest crime story of our time," referring to illegal border crossings, which occurred under both his first administration and the Biden administration. "She should be impeached and prosecuted for her actions," Trump said.