Nothing.
Didn't matter whether it was a Democrat President - LBJ - or a Republican President - Nixon, Ford - Nothing.
Even a traitor caught red-handed bombing the Capitol - Leslie Bacon - nothing.
Compare and contrast this with today's roundup of 400 or more demonstrators from Jan 6th, Pelosi's "January 6th Commission", and the attempts to prosecute our real President for every idiot petty crime they can think of.
“Nothing”
and that’s to the everlasting shame of the FBI and every responsible elected official from 1965 to-date. Stink & Stain will remain.
The common denominator: J. Edgar Hoover