Tony Bobulinski testified Wednesday during an impeachment inquiry hearing about his past business endeavors with Biden family members, calling some of them liars and saying he hoped to provide the “truth” about the family during the hearing.

Bobulinski said President Joe Biden was “a serial liar and fabulist now under this impeachment investigation for public corruption.” His brother James Biden is “a 75-year-old man who cannot keep his lies straight, including under oath,” Bobulinski said.