Of course. I have been stating it for years because it makes sense to assume it. Freshman politicians in DC are assigned a handler whose job is to compromise politicians any way possible (threaten, bribe, blackmail). Also, look up Whitney Webb. She wrote a book recently called "The United States of Blackmail".
Good post.
This was an open secret in DC for many decades.
Lobbyists who get the big fees must have blackmail files—while politicians can be bought by bribery there is no guarantee the slime stays bought.
Imho there is a “black market” of blackmail files on politicians—the pols are bought and sold like commodities for any special interest (including foreign intelligence services) willing to pay the entry fee.
One old example was J. Edgar Hoover (his own special interest group)—he collected the “dirt” on politicians to assure both ample FBI funding and to assure no President dare fire him.