President Trump asserted on Tuesday that undocumented immigrants should not be entitled to trials, insisting that his administration should be able to deport them without appearing before a judge.

The remarks, which he made in the Oval Office in front of reporters, were Mr. Trump’s latest broadside against the judiciary, which he has said is inhibiting his deportation powers. Mr. Trump falsely claimed that countries like Congo and Venezuela had emptied their prisons into the United States and that he therefore needed to bypass the constitutional demands of due process to expel the immigrants quickly.

“I hope we get cooperation from the courts, because we have thousands of people that are ready to go out and you can’t have a trial for all of these people,” Mr. Trump said. “It wasn’t meant. The system wasn’t meant. And we don’t think there’s anything that says that.”

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