Could their paycheck drop to zero? Of course.
When you consider that many of these workers get the pensions that ordinary people don't get, their need for excess payments from the Treasury is unnecessary.
How about putting the civilian federal workforce on social security?
How’s about they just stop this stupid dangerous and licentious deficit spending mess altogether?
Oh, it’s for the unborn gay trans pagan whales....
Never mind.
In 1976 I was guaranteed medical care for life according to my dd214. Somewhere along the line it became means tested and that promise is no more.