A sheriff in upstate New York has been warned for allegedly violating federal law after flying a pro-Trump flag on a sheriff boat during a summer parade last year. Oswego County Sheriff Don Hilton received the warning letter from the U.S. Office of Special Counsel (OSC), reported Syracuse.com, which obtained the letter. An investigation into the flag flying incident was launched by the OSC following a complaint that the sheriff’s office flew an altered American flag with former President Donald Trump’s image and his campaign slogan “Making America Great Again” during an event titled the “Trump flotilla” on Oneida Lake, the network reported. “Because you used an official agency resource to promote a presidential candidate, thus giving the impression that the Oswego County Sheriff’s Office endorsed that candidate, OSC determined that you violated the Hatch Act’s prohibition against using your official authority to affect an election,” the letter, issued by deputy …