The Associated Press

SEATTLE — On the same day a federal appeals court allowed part of President Donald Trump’s travel ban to take effect, advocacy groups filed a new lawsuit Monday challenging the administration’s related efforts to restrict or ban certain refugees from entering the U.S.

The developments came as lawyers on both sides of the issue are preparing for yet another round of appeals court arguments next month. They’re the latest sign that after nearly 10 months, the battle over the president’s travel restrictions — and whether they represent the “Muslim ban” he promised during his campaign or a legitimate effort to improve national security — is far from over.

“The president is making every effort to implement a campaign promise that’s un-American and unconstitutional,” said Mark Hetfield, president of the refugee support organization HIAS. “The only way to stop him is through the courts.”

Last month, a federal judge in Hawaii blocked most of Trump’s third travel ban just before it was due to take effect. A judge in Maryland separately blocked it to a lesser degree, saying Trump could bar people from six mostly Muslim nations — Chad, Iran, Libya, Somalia, Syria and Yemen — as long as they did not have “bona fide” relationships with people or organizations already in the U.S.

The travel ban also applies to travelers from North Korea and to some Venezuelan government officials and their families, but the lawsuits did not challenge those restrictions.

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