Lots of folks who ever never dug into the brothers very deeply don't really understand their politics. The are essentially libertarians. The recent pulled all support from an R senator running for reelection after he gave strong support to Trump. And their opinion about Hillery? From Zerohedge:
The powerful political network helmed by Charles and David Koch is ruling out running advertisements intended to hurt Hillary Clinton, another sign of their insistence on avoiding the presidential race. The Koch network has previously said they will not back Republican candidate Donald Trump, but on Saturday officials told reporters that they would not run negative Clinton spots.
I bet that just shocks the sh*t out of a lot of folks here. LOL