I can say, with as much certainty as an internet researcher can, that he makes A Lot of money from investments in China. I initially learned this from some back channel internet stuff but a simple wiki search is all it takes.
I understand your skepticism, it's not unfounded. It's not so much the party that's heading this undertaking as much as a few key individuals in the Republican Party. Most of the resignations and announcements of not running for reelection have been republicans that have cut deals of cooperation to keep their crimes from being exposed. One was even killed. More on that later... if you're interested.
The military is the primary force behind the movement. The military remained complacent to the will of elected officials until they took it a step too far; the politicians were going to start WWIII on purpose. That's when they decided to intervene and get their own man elected to stop the syndicate controlled politicians from being in a position to complete their plans. Hillary has been alleged of saying: "If that f**king bastard gets elected we all hang from nooses!"
The NSA knows everything. The president has full LEGAL access to the NSA. He legally knows everything that every administration has ever done. Hillary knew this and knew that if Trump got elected he'd have access to all of the information of the treasonous acts of the past handful of administrations, republican and democrat.
Because it's legal information it can be used to take the traitors to court. Kavanaugh and the FISA declassification are the final dominoes before everything comes crashing down. That's why the DNC is fighting like hell to stop Kavanaugh. With any luck, this October will be the month. It has to be, the midterms are coming.
If you want to see proof of the corruption crack down google search some news articles about Saudi Arabia November 4th, 2017. Is that a normal happening? How significant of a happening is it?