Weakens or strengthens?
I just cannot believe that Republicans keep insisting that questioning the president somehow weakens America, and no one calls them on it. The reason America is strong and North Korea isn't (to take the other extreme) is that in America you are supposed to question your leaders. The president is not the pope and therefore people in his own party should admit that as a human, he will make mistakes, and there is nothing wrong with that.
Questioning your leaders is what gives them a chance to realize their mistakes and change course when need be, if not you can (in a democracy) just change leaders.