Washington (CNN) The US House of Representatives may be considering articles of impeachment against President Donald Trump that go further than the Ukraine issue, including obstruction of justice and interference with federal elections accusations, the top House lawyer said in federal court Tuesday.

"I can't emphasize enough, it's not just Ukraine," House General Counsel Doug Letter told Chief Judge Beryl Howell of the US District Court in Washington, DC.

Letter said Trump could be impeached for lying to the American public.

Howell asked if Trump had to have committed a crime to be impeached. The answer from Letter was an unequivocal "no."

Howell then asked if Trump could be impeached for lying to the American public. "I believe so, yes," Letter said.

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