UPDATE Feb. 1 9:34 a.m.:
A CNN producer is also suing to challenge Trump's travel ban, The Atlanta Journal-Constitution reports.
Mohammed Tawfeeq, a permanent legal resident, was detained Sunday at Atlanta's Hartsfield-Jackson International Airport. He runs CNN's international desk.
A Chicago man who traveled to Iran to visit his sick mother is suing to declare President Trump's travel ban unconstitutional.
The Chicago Tribune reports the man, who chose to remain anonymous, is an Iranian citizen and permanent legal resident of the U.S. He hoped to return home in time for the birth of his first grandchild, according to the lawsuit.
A hearing asking for an emergency injunction to stop the order from being enforced is expected this week.
He's afraid to come back. Things are changing so quickly. He's basically stopped in a very bad situation.
The plaintiff's lawyer, Taher Kameli, said the plaintiff was "anxious" to return but afraid of being detained, as many people were over the weekend.
The Council on American-Islamic Relations filed a similar lawsuit on Monday. The American Civil Liberties Union filed a similar lawsuit on behalf of two Iraqis detained at John F. Kennedy Airport in New York.
Past court orders stopped enforcement of parts of the ban, but CAIR and the Chicago man seek to render the whole order unconstitutional.
Also on Tuesday, San Francisco sued to challenge Trump's order to deny funding to sanctuary cities. It's the first court challenge filed over the order, CNBC reports.
New York Attorney General Eric Schneiderman joined the ACLU lawsuit on Tuesday, Reuters reports.
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