We should never give government or politicians the benefit of the doubt.
Especially one with a 30+ year history of liberalism.
I'm not sure what anyone hopes to achieve with this "give him the benefit of a doubt" BS anyway. If he screws us over that's it and all the benefits of doubts in the world will continue to be meaningless and we'll be just as screwed. Mostly it sounds like a lot of people trying to absolve themselves of guilt like Coulter.
And lets not forget, these people didn't just vote for Trump and call it a day. These people threatened to destroy republican politicians who didn't get on board. In many cases voters were threatened with everything from deportation to execution if we didn't get on board.