Russian mercenary chief Yevgeny Prigozhin and some of his top lieutenants were presumed dead in a plane crash that was widely seen Thursday as an assassination to avenge a mutiny that challenged President Vladimir Putin. Former U.S. Ambassador to Ukraine John Herbst breaks down the possible political implications for Putin. #Putin #Prigozhin #Russia Get a fast-paced look at the latest from the border to Main Street to the White House on "NewsNation Live with Marni Hughes." Weekdays starting at 10a/9C.#NewsNationLive 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