The rally in downtown Washington on the day before Trump's inauguration ceremony will also feature Hulk Hogan, Kid Rock and Village People.

Many budget hawks have tried and failed to streamline the government and reduce gigantic annual deficits. Musk's efficiency commission will only succeed if forces a reluctant Congress to finally act.

Donald Trump’s first term gave the world a taste of deliberately disruptive unwanted involvement in the domestic affairs of other countries, with examples ranging from Britain in the throes of Brexit to North Korea where the 45th US president attempted to forge a personal deal with Kim Jung-Un.