US President Donald Trump's revised travel ban is facing mounting legal challenges as four more US states join action.
Washington, New York, Oregon and Massachusetts have now vowed to block the executive order.
The announcement came one day after Hawaii filed the first suit challenging the controversial new directive.
The new order temporarily closes US borders to all refugees and citizens from six mainly-Muslim countries.
Washington state's Attorney General Bob Ferguson, was the first to sue over the initial travel ban that was eventually blocked.
He said his motion calls on the court to apply an existing injunction against the first travel ban issued in January to the new executive order unveiled on Monday.
"My message to President Trump is - not so fast," Mr Ferguson told reporters.
"After spending more than a month to fix a broken order that he rushed out the door, the president's new order reinstates several of the same provisions and has the same illegal motivations as the original," he said.
"Consequently, we are asking Judge (James) Robart to confirm that the injunction he issued remains in full force and effect as to the reinstated provisions."
Mr Ferguson said although the revised order was narrower in scope, it still could be challenged on constitutional grounds.
The new order denies US entry to all refugees for 120 days and halts for 90 days the granting of visas to nationals from Syria, Iran, Libya, Somalia, Yemen and Sudan.
It is due to take effect on Thursday, 16 March.
The first order had also applied to citizens of Iraq but the country was dropped from the new list.
Hawaii filed the first lawsuit over the new ban on Tuesday, saying it remained unconstitutional despite the changes.
"This second executive order is infected with the same legal problems as the first order - undermining bedrock constitutional and statutory guarantees," said the suit, which was filed Wednesday in a federal court in Honolulu.
Judge Derrick Watson put the suit on a fast track, scheduling a hearing on whether to impose a national restraining order on 15 March, the day before the executive order goes into effect.
The White House cites national security in justifying the ban, arguing that it needs time to implement "extreme vetting" procedures to keep Islamic militants from entering the country.
