The White House said today that Republican presidential front-runner Donald Trump's call for the United States to ban Muslims from entering the country disqualified him from becoming president and called on Republicans to reject him immediately.
White House spokesman Josh Earnest said Trump's campaign had a "dustbin of history" quality to it, and said his comments were offensive and toxic.
Earnest said other Republican presidential candidates, who have pledged to support the person who eventually wins their party's nomination, should disavow Trump "right now."
Trump earlier today stood by his comments, even saying that there were police no-go areas in Paris and London where police were "afraid for their lives" because of large Muslim communities.
But London Mayor Boris Johnson hit back, saying that the only reason he wouldn't go to some parts of New York was the real risk of meeting Donald Trump.
"As a city where more than 300 languages are spoken, London has a proud history of tolerance and diversity and to suggest there are areas where police officers cannot go because of radicalisation is simply ridiculous," the mayor said.