TUNE IN: Go inside President Harry Truman’s critical decision to use the atomic bomb against Japan in World War II, and how that decision changed lives and the world forever. Chris Wallace hosts “Countdown 1945,” tonight at 10p ET on Fox News Channel. https://fxn.ws/2BJ91tV | Fox News

A growing number of Republicans say they will not support President Trump in 2020. Fox News' Chris Wallace discusses how our current divisions could impact the presidential election and his new book, "Countdown 1945." | CBS Mornings

9.5K views · 245 reactions | Chris Wallace has a new book coming out titled "Countdown 1945: The Extraordinary Story of the Atomic Bomb and the 116 Days That Changed the World." We gave you a taste of what's to come on Fox News Sunday. Check it out here and visit our website for more details. #FNS | Fox News Sunday | Facebook

118K views · 1.4K reactions | Go inside President Harry Truman’s critical decision to use the atomic bomb against Japan in World War II, and how that decision changed lives and the world forever. Chris Wallace hosts “Countdown 1945,” Sunday at 10p ET on Fox News Channel. | Fox News | Facebook

It's here! Chris' new book "Countdown 1945: The Extraordinary Story of the Atomic Bomb and the 116 Days That Changed the World" is now available for purchase. Visit FoxNewsSunday.com for more details #FNS #FOXNews | Fox News Sunday

5.2K views · 82 reactions | Chris releases unother clip of the documentory based on his new book "Countdown 1945." The book will be released June 9th, documentary will air next Sunday, June 7. Visit foxnewssunday.com for more details. #FNS #FOXNews | Fox News Sunday | Facebook

4.6K views · 82 reactions | Chris Wallace joins Anderson to talk about his new book, "Countdown 1960: The Behind-the-Scenes Story of the 312 Days that Changed America’s Politics Forever," and the parallels between the 1960 presidential race and the current one. | Anderson Cooper 360 | Facebook