US President Donald Trump has instructed border officials to check people entering America "very carefully", after the federal appeals court on Saturday rejected the Trump administration's request to reinstate the travel ban. 
The ban, affecting people from seven mainly-Muslim countries, was blocked by Seattle's federal judge on Friday. 
"I have instructed Homeland Security to check people coming into our country very carefully. The courts are making the job very difficult!" Trump tweeted. 
"Just cannot believe a judge would put our country in such peril. If something happens blame him and court system," he added. 
President Trump on Sunday ramped up his criticism of Judge James Robart, who blocked the ban, and the country's judiciary. 
In its appeal, the justice department said Judge Robart had overreached by "second guessing" the president on a national security matter. 
It also argued that only the president could decide who can enter or stay in the US. 
The two states challenging the restriction, Washington and Minnesota, argued that the ban was unconstitutional and denied people with valid entry documents the right to travel without due process. 
It also violated freedom of religion rights by appearing to target Muslims, they said. 
The White House and two US states challenging the ban have been given a deadline of Monday to present more arguments.

Source: QNA