Former Rep. Trey Gowdy, R-S.C., said Friday that it's been almost four years since details of Gen. Michael Flynn's phone call with the Russian ambassador were leaked to the media, but the question of who leaked the information remains.
"It's a 10-year felony," Gowdy told "Mornings With Maria" on Fox Business Network.
Gowdy, former chairman of the House Oversight and Government Reform Committee and a Fox News contributor, told host Maria Bartiromo that he was "struck" by how many people in the Obama administration had the power to request Flynn's name be unmasked.
"The undersecretary from Micronesia does not need unmasking power," he said, arguing that a leak investigation is difficult when so many people have access to the classified information.
Gowdy said the "serious crime" must be investigated and brought to a conclusion, especially considering how much effort was spent to bring charges against Flynn.
"So I ask the FBI again: how is your leak investigation going? I know how your Michael Flynn investigation went, I know the time and effort you spent to try to catch someone in a lie. How is your 10-year felony investigation going? It has been four years now," he argued.