Donald Trump Jr. on Wednesday criticized the Montana GOP for disinviting a pro-Trump speaker from a state convention. What Happened: Alex Bruesewitz, a conservative political consultant and ardent supporter of Donald Trump, was scheduled to be the keynote speaker at the Montana GOP convention. However, his speech got axed over criticisms of Republican Rep. Matt Rosendale (R-Mont.) “It’s really disappointing to see some Republicans in Montana engage in leftwing cancel culture. It’s even more disappointing that they would target one of my father’s strongest and most loyal supporters – Alex Brues…