A "we did it" congratulatory message from former KKK leader David Duke.

"Hear these words. You will never be ignored again," says Trump as he rises in a crescendo to finish with his signature promise.

"Together we will make America wealthy again.

"We will make America proud again.

"And yes, together we will make America great again."

"God bless America", he says twice before leaving the lectern. 

Obama seen mouthing: "Good job, good job."

"A new national pride will lift our sights and heal our divisions," says Trump. 

"It's time to remember that old wisdom our soldiers will never forget. That whether we are black or brown or white we all bleed the same red blood of patriots."

Here's snap analysis on Trump's speech by BBC correspondents. 

"We must think big and dream even bigger. l will no longer accept politicians who are all talk and no action, constantly complaining, but never doing anything abut it," Trump says.

"The time for empty talk is over, now arrives the hour for action. Do not allow anyone to tell you that it cannot be done."

"There should be no fear," Trump says before praising the nation's law enforcement and armed forces.

"Most importantly we will be protected by God" he tells the crowd.

"When you open your heart to patriotism, there is no room for prejudice"

"We will unite the civilised world against radical Islamic terrorism, which we will eradicate completely from the face of the earth."

"We will get our people off welfare and back to work. We will follow two simple rules, buy American and hire American.

"I will fight for your with every breath in my body and I will never ever let you down. America will start winning again and winning like never ever before."

The official presidential Twitter account has been transferred to Donald Trump and scrubbed of the Obama administration's tweets.

"@POTUS hasn't tweeted yet", it says. But you can bet he will soon.

Trump promises that jobs and education will be strengthened under his administration.

"We've made other countries rich while the wealth, strength and confidence of our country has dissipated over the horizon. One by one, the factories have left our shores.

"The wealth of our middle class has been ripped from their homes and redistributed all across the world.

"From this day forward its going to be only America first, America first!"

In a nod to his post-industrial political heartland, Trump talks of shuttered "factories scattered like tombstones" across the country.

"This American carnage stops right here and stops right now!"

Trump: "This is your day, this is your celebration, and this, the United States of America, is your country.

"The forgotten men and woman of our country will be forgotten no longer. Everyone is listening to you now.

"What truly matters is not which party controls our government. But whether our country is controlled by the people."  

"We are transferring power from Washington DC and giving it back to you, the people," Trump says in a nod to his populist campaign. "Washington flourished, but the people did not share in its wealth."

"They have been magnificent," he says. Obama waves graciously.

Image source, Getty Images

Crowds in Washington - both Trump supporters and protesters, rain ponchos and colourful T-shirts -  here's a photo gallery of the big day.

"People of the world, thank you," Trump begins. "Together we will determine the course of America and the world for many many years to come."

He continues: "We the citizens of America are now joined in a great national effort to rebuild our country and restore its promise for all of our people."