Washington DC - President Donald Trump renewed baseless allegations of voter fraud Monday, questioning the legitimacy of last week's midterm elections after Democrats swept both chambers of Congress in a crushing defeat for his Republican Party.

"Does anybody really believe that this 'Election' was honest. How could the Polls be so wrong???" Trump wrote on Truth Social, alleging without evidence that large early voting "dumps" had made Republican victories impossible.

"It's all about the machines, which are far more important than the voter!" he added.

The accusations marked a sharp reversal from Trump's initial acceptance of the results. "I am absolutely willing to accept those results," he told The New York Times on election night.

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The president has repeatedly made unfounded claims of election fraud, most notably following his defeat by Joe Biden in the 2020 presidential election.

Following last week's "blue tsunami" of sweeping wins for the Democratic Party, Trump admitted Sunday that his administration's mass deportations and overall crackdown on immigration were "too tough."

But he has already appeared to double down in spite of the results, tapping Stephen Miller, the architect of his aggressive immigration policy, to replace Susie Wiles as his new chief of staff.