It amazes me that the Republican Party cannot do anything about him.
I know from my understanding of American politics that the Parties are not as powerful in the US as they are in Britain and cannot discipline their Members like ours can.
In Britain you would get the whip taken from you if you disagreed with a senior member or your party leader (the President must surely qualify as this) which would mean you are automatically de-selected and would not be able to stand as your party candidate at the next election. You would also be expelled from the Party or asked to resign from the Party.
I lived under the Parliamentary system in Canada for 20 years, and much prefer the American system.
You all can have a vote of no confidence and bring on a new election, but between elections the Parliamentary system gives the 'Government' a dictatorial power, that our Framers of our Constitution decided not to repeat.
The difference is executive power in the UK is held by the ruling party in parliament. In the US, executive power is an entity unto itself and by design has friction between the legislative branch and executive.