President Donald Trump: 'It all changes, starting right here and right now'

Latest: In his first address as President of the United States, Donald Trump has said: "January 20 will be remembered as the day the people became the rulers of this nation again."

Update 5.06pm: In his first address as President of the Unitred States, Donald Trump has said: "We are transferring power from Washington DC, and giving it back to you, the people.

"For too long, a small group in our nation's capital has reaped the rewards of government while the people bore the cost.