The US president has far more power than the UK Prime Minister, who only leads their party and requires MPs to vote for anything they want to do, as Boris Johnson discovered last year when he failed to get his plans through parliament multiple times.
Far less. Yes, the PM can fail to get a bill passed by his own majority and can even lose a confidence vote. But the President can’t even submit a bill to Congress, and then either or both houses of that Congress can be of the opposite party. Even the Senate can kill legislation or appoints by failing to reach a supermajority over a filibuster.
Perhaps less (or similar) lawmaking power, but the President of the US leads an entire branch of government which comes with a significant amount of power in its own right.
The President leads the Executive Office of the President. The Federal agencies (the Treasury Department, Department of Defense, ...) are themselves led by Cabinet Secretaries nominated by the President and confirmed by the Senate. The Prime Minister appoints Ministers not subject to confirmation by anyone else.
You are about to see how important this confirmation veto is.
