The two great antagonists in American politics didn't even try to hide their mutual loathing.
The speaker of the US House of Representatives said Democrats will block the deal in Congress if the peace accord is undermined.
Nancy Pelosi said the president would be welcome to make his address in the chamber once the government shutdown has ended.
The House Speaker had said the president's State Of The Union address should be delayed amid the impasse.
It is the first new Congress to convene during a partial government shutdown.