Republican faces questions over whether he lied under oath to key panel

Democrats suggest ex-FBI agent turned purported whistleblower Garret O’Boyle was not fully truthful about legal counsel funding

A key Republican witness is facing questions over whether he lied under oath about receiving financial aid from an ally of former US president Donald Trump.

Garret O’Boyle, a former FBI field agent turned purported whistleblower, testified last week to a congressional panel investigating what Republicans assert is the “weaponisation” of the federal government against conservatives.