If you want to know how MONEY IS LAUNDERED to POLITICIANS you need to look at 501(c)3 and 501(c)4.
Being a board member or "employee" of one of these can be very BENEFICIAL.
Lets say HILLLARY needed to PAYOFF someone like say COMEY for some EMAIL things. She would get COMEY'S WIFE to run and start a PAC. Then the CLINTON FOUNDATION would make a DONATION to her PAC. Oh no it looks like COMEY'S WIFE is going to lose so shes DOESN'T SPEND the money collected to her PAC. That is okay, she can transfer the MONEY to the 501(c)4 and become an EMPLOYEE and get PAID from the LEFTOVER DONATIONS.
It is almost like LEGAL MONEY LAUNDERING