The U.S. remains in a heightened threat environment for both foreign and domestic terrorism following the recent arrests of eight people from Tajikistan with suspected ties to the Islamic State group, the Department of Homeland Security confirmed to NewsNation. Sen. James Lankford, R-Okla., says President Joe Biden's executive border order hasn't been effective at reducing illegal crossings at the southern border. #ISIS #immigration #terrorists 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 America. 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