Former Trump lawyer Michael Cohen pleaded guilty to exactly that in November 2018, over what he told the Senate and House intelligence committees about a Trump Tower Moscow project.

There’s no federal law that makes it a crime for a politician to lie to the public in a speech or a campaign. Most political speech is protected by the First Amendment, and the Constitution’s Speech or Debate Clause shields what lawmakers say in official proceedings.

Lawmakers can still be charged over false statements in documents they file with Congress, such as financial disclosures.
Should lying to voters be a crime, or would that cause more problems than it solves?