A businessman has to donate to politicians in his area. I believe Trump did it mainly to get work done and not because he supported their agenda. It is part of the cost of doing business. It’s not his fault that the politicians in his area were dums.
“....That $100,000 gift from Trump to the Boehner-allied super PAC was twice as big as his next-biggest contributions. [Trump’s] given $50,000 .. to Karl Rove’s American Crossroads (2010) [and $50,000 to] the pro-Mitch McConnell (R-Ky.) Kentuckians for Strong Leadership (2013)...
And then Trump gave McConnell’s PAC another $10,000 in Nov 2014.