A Palestinian activist who helped lead last spring's protests at Columbia University has been arrested by Immigration and Customs Enforcement officers. Mahmoud Khalil's lawyer says he was arrested at his apartment near the university by agents who claimed they were acting on a State Department order to revoke his green card. #ColumbiaUniversity #IsraelHamasWar #protests Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Markie Martin. Weekdays starting at 6a/5C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij