The White House press secretary Josh Earnest on Tuesday said that Donald Trump’s proposal to prevent Muslims from entering the country disqualified him from becoming president and urged Republicans to dismiss him immediately.
"What Mr. Trump said is deeply offensive," Earnest said. "It’s morally reprehensible. It runs counter to the US Constitution" and threatens national security, he added.
Earnest also severely ciriticised Trump’s campaign as a "carnival barker routine” that was rooted "in the dustbin of history."
"Question now is about the rest of the Republican party and whether they’re going to be dragged into the dustbin of history with him."
“What we need to see is a definitive statement from every candidate for the presidency about whether or not Mr. Trump is somebody they should vote for,” Earnest said.
Trump on Monday called for blocking Muslims, including refugees, students, tourists and other visitors, from entering the country following last week's California shooting spree by two suspects who authorities said were radicalized.
Despite attracting worldwide criticim, Trump stood by his comments on Tuesday.
He said that his ideas were no worse than those of President Franklin D. Roosevelt.
After Japan attacked Pearl Harbor in 1941, Roosevelt relocated about 120,000 Americans of Japanese ancestry to internment camps.
United Nations (UN) human rights chief said on Tuesday that Trump was "grossly irresponsible" and played into the hands of DAESH by calling on the US to bar Muslims from entering the country.
"Clearly while there's no love lost for those who perpetrate the violence and the killings of civilians, it's a double tragedy when the innocent have to suffer because of the reaction," UN human rights commissioner Zeid Ra'ad Al Hussein told reporters.
Last month Trump called for the surveillance of mosques and the establishment of a database tracking all Muslims living in the US.