"Running roughshod" means "expressing your opinions".
I haven't heard facts here on this thread and it is extremely disappointing to hear so much criticsm when so little has been actually said about this nominee. We conservatives beat our own before the opening statements! Everyone here seems to have the "well if he doesn't pick someone off this list, that's it I'm through supporting our President". Well, that's just childish and not worthy of all our President has done. Yes, he has made mistakes, but none of us are in his shoes, make his decisions daily, or take the constant barrage of hatred from the left and the media and even his own supporters! Give the nominee a chance before you take out the guns and SHOOT HER DOWN!