Predictions of civil unrest following Republican Donald Trump’s victory have already come to fruition.
Angry demonstrators, who do not want Mr Trump as their president, have broken windows, sprayed graffiti and set bins and tyres on fire in California, causing damage to businesses.
The protest in Oakland saw people burn a Trump effigy and smash the windows of the Oakland Tribune newsroom. Police said a woman was struck by a car during the incident and has been taken to hospital.
It was just one of a string of protests which have taken place across the US following the defeat of Mr Trump’s rival Hillary Clinton.
Hundreds of people in Oregon blocked traffic and delayed trains as they sat in the middle of a road in Portland. Setting American flags alight, they chanted: “That’s not my president”.
Meanwhile, in Seattle, another 100 protestors blocked roads and set bins on fire in Capitol Hill.
In Pennsylvania, hundreds of students from the University of Pittsburgh took to the streets, while there were also protests in campuses across the country, including in Texas, Connecticut, California and Berkeley.
In New York, fights broke out in Times Square as supporters of both sides clashed.
And, the protests have not just been on the ground, but in the virtual world too.
The hastag #NotMyPresident is already trending, having been used half a million times.
In his victory speech, Mr Trump said he realised that there were bitter divides that he must bridge.
His first address as America’s new President-elect concentrated on striking a unifying note. Former reality television star Mr Trump said it was now “time for America to bind the wounds of division”.
Mr Trump said: “The forgotten men and women of our country will be forgotten no longer. I pledge to every citizen of our land that I will be president for all Americans, and this is so important to me.”
However, as there are a significant number of Americans who do not want him as their president, he faces an uphill struggle to heal bitter divisions.
Many believe he will not have the diplomatic touch need to do that. Professor Iwan Morgan, from University College London, said: “My feeling is that Trump is going to treat the presidency as the equivalent of a CEO position, and it isn’t that. The presidency has to be held by someone who understands the necessity for persuasion, it isn’t a place for command.”