The United States (US) Justice Department will faceoff with opponents in a federal appeal court over the fate of President Donald Trump';s temporary travel ban on people from seven Muslim-majority countries, his most controversial act since taking office last month.

Ceoafrica gathered that Last Friday, US District Judge James Robart suspended Trump';s ban, opening a window for people from the seven affected countries to enter the country.

The 9th U.S. Circuit Court of Appeals in San Francisco will hear arguments over whether to restore the ban from Justice Department lawyers and opposing attorneys for the states of Minnesota and Washington at 3 p.m. PST (2300 GMT).

In a tweet on Monday night, Trump said: "The threat from radical Islamic terrorism is very real, just look at what is happening in Europe and the Middle-East. Courts must act fast!"

Trump has said the travel measures are designed to protect the country against the threat of terrorism. He has derided Robart, appointed by Republican President George W. Bush, as a "so-called judge."

In a brief filed on Monday, the Justice Department said the suspension of Trump';s order was too broad and "at most" should be limited to people who were already granted entry to the country and were temporarily abroad, or to those who want to leave and return to the United States.

Opponents say the 90-day ban barring entry for citizens from Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen and imposing a 120-day halt to all refugees is illegal. The state of Washington argues it has suffered harm, saying some students and faculty at state universities had been stranded overseas because of the ban.

The Republican president';s January 27 executive order sparked protests and chaos at U.S. and overseas airports in the weekend that followed.