The turbulent early weeks of the Donald Trump administration has led to a Democratic congressman to call for the rewriting of the 25th Amendment governing how the country copes with presidential incapacity.

Earl Blumenauer, who represents Portland in Oregon, one of the most liberal cities in the United States, says the 50 year old amendment should be re-examined

"For a mentally unstable, paranoid or delusional president, the 25th Amendment has no guarantee of its application. In fact, it’s likely that it would fail," Blumenauer said in a speech this week on the floor of the House of Representatives.