https://www.huffingtonpost.com/entry/trey-gowdy-informant-spy_us_5b0dfffde4b0802d69cf6245
"Rep. Trey Gowdy (R-S.C.), the chairman of the House Oversight Committee, said the FBI acted appropriately when it used an informant to gather information about Donald Trump campaign advisers who allegedly had suspicious contacts linked to Russia prior to the 2016 election."