The federal investigation into Florida Rep. Matt Gaetz is focused on allegations that the junior congressman had a sexual relationship with at least one minor, and is scrutinizing the Republican's conduct not only in Florida but in other states too, three sources familiar with the investigation tell ABC News. The investigation, first reported by the New York Times Tuesday and confirmed by ABC News, has sent shockwaves through Republican circles, particularly among close associates of former President Donald Trump, who considered Gaetz a staunch ally and loyal friend.