Musicians from the Muslim-majority nations in Trump's original executive order combat bigotry and xenophobia on stage.
The Justice Department's first step would likely be filing an appeal in either or both of the state cases, an action likely to come within days.
The move was the latest blow to the administration's efforts to temporarily ban refugees as well as travelers from six predominantly Muslim countries.
Court papers filed by the state of Washington and joined by California, Maryland, Massachusetts, New York and Oregon asked a judge to stop the March 6 order from taking effect.
Maryland is the seventh state, after Washington, New York, Oregon, Minnesota, Massachusetts, Hawaii, to mount a legal challenge.
Veterans of multiple presidential administrations, including John Kerry and Madeleine Albright, write that the revised order reinforces ISIS propaganda to disaffected Muslims.
A federal judge in Wisconsin issues a temporary restraining order that prevents the U.S. from keeping out a woman and child already processed for asylum.
The first travel ban prompted mass protests and chaos at U.S. airports in January.
The revised travel order changed and replaced an original, more sweeping ban issued that caused chaos and protests at airports.
U.S. District Court Judge Derrick Watson in Hawaii said the state could add to its initial lawsuit, which had challenged Trump's original ban signed in January.
Monday a presidential adviser had urged Nigerians to reconsider their trip.
The Trump administration this week issued a new executive order that supplanted the one which had been challenged in court by the state of Washington.
Historically speaking, immigration control is one of the least constitutional and most racist realms of governance in U.S. law and life.
Advocacy groups have been receiving about requests from parents who want to put in place temporary guardianships for their children.
Trump is expected to issue a new travel ban in coming days after federal courts blocked his Jan. 27 executive order that temporarily barred travelers from Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen.
By excluding legal permanent residents from a new order, something the administration has said is likely, the president would make it harder for opponents to challenge the ban.
The order from the 9th U.S. Circuit Court of Appeals could increase pressure on the Trump administration to clarify its intentions regarding the controversial executive order.
White House says the report, which found 'country of origin' as an unreliable indicator of terrorism, is incomplete.
The president delivered a greatest hits set, boasting of policy goals and repeating criticisms of the judiciary, Democrats and the press.
Director of Homeland Security also says people caught on airplanes when the new order goes into effect will be allowed into the U.S.
Activists called on immigrants to stay home from work, avoid shopping and skip classes in "A Day Without Immigrants," an effort to highlight the vital role they play in American society.
The presidential order imposed a temporary ban on travelers from seven predominantly Muslim countries, but a federal judge has barred enforcement of the order while the court considers a challenge brought by Washington state.
Policy aide continues the administration's attacks on the judiciary, declines to detail next legal steps.
The court's wide ruling leaving Trump's executive order suspended is notable for the legal issues it did not touch.
The enforcement actions took place in Atlanta, New York, Chicago, Los Angeles and surrounding areas.