At least Manafort can afford to lawyer up. Lots of people are getting dragged into this witch hunt who need counsel but can’t afford it - they face financial ruin if they don’t cooperate - the truth be damned.
Politically motivated witch hunts like this which seek to criminalize politics are the modus operanda of a police state, not a constitutional Republic.
In a Republic, politicians should be held accountable by the voters, at the voting booth.