The ACLU is getting “multiple reports” that federal customs agents are siding with President Trump — and willfully ignoring a Brooklyn federal judge’s demand that travelers from seven Muslim countries not be deported from the nation’s airports.

“The court’s order could not be clearer… they need to comply with the order,” Omar Jadwat, director of the ACLU’s Immigrants Rights project, told The Post late Saturday.

“It’s enough to be a serious concern,” Jadwat said of the reports.

Jadwat and other ACLU lawyers had earlier Saturday night won an emergency stay of Trump’s deportation order from Brooklyn Federal Judge Ann Donnelly.