The federal investigation into a vehicle explosion at the Rainbow Bridge border crossing between the U.S. and Canada in Niagara Falls is over, the FBI said late Wednesday night. #Border #RainbowBridge #Explosion Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Adrienne Bankert and Markie Martin. Weekdays starting at 7a/6C. #MorningInAmerica NewsNation will host the final Republican primary debate on Dec. 6 at 8 p.m. E.T. The debate will be aired and streamed live on all NewsNation platforms. Not sure how to find us on your TV? Use our ChannelFinder app: joinnn.com 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