Most of them I believe. Biden is 45 years on the Capitol. He is family and except for a very few Rand Pauls the GOP Senators have no interest in skewering one of their own. OTOH if as much stuff was found about Barky and his 8 years I believe they would jump all over it. Barky was never family.
There is a massive amount of stuff on Obama.
But he also is one of them (spit)
After all the eGOP helped McCain give the election to Obama, and then did it again with Romney to give him a second term.
The GOP is lazy, second tier corruption is ok with them.
They are too lazy and stupid to know that when things get dicey, they will be the first to be out.
Either by Civil war or Muslim takeover or China? Russia? Iran? takeover.