BBB, from my understanding that's how politics works, if 2/3 of congressmen didn't support Trump and he was president, literally nothing would happen, thus it is whoever holds the majority that is president, and not the president who is dependant on the results of congress. At least I think that's how it works here.
Here if you have enough MPs to pass whatever you want provided all of them vote you're set, if not then you have to form a coalition.