Yea, the real problem today is that there is no check on balance on the president. Congress isn't going to go after Trump either. Divided government is the best, especially when we have a crazy person as President.
Yeah. For some time now I have felt there needs to be an office of investigation. Two blocks, one with the Democrats in charge, one with the Republicans. (Or whatever the two biggest parties are if things change.) The budget is tied to a % of GDP by the Constitution so it can't be messed with and it's split up in proportion to the number of people of the
other party in power. (Thus the minority party gets the bigger budget.)
It's investigative powers are extensive but limited to those who are elected or hired/appointed by those who are elected. Such people get no 5th amendment protection from it while holding their positions. (To take the 5th is to resign on the spot.)