Texas Gov. Greg Abbott officially endorsed former President Trump for the GOP primary nomination at a Sunday event honoring service members stationed on the Texas border. “A president has one ultimate responsibility and that’s national security. Joe Biden has failed at national security. Well, I’m here to tell you that there is no way, no way that America can continue under the leadership of Joe Biden as our president.” Abbott said at the event. #Abbott #Biden #Trump 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: h...