Is VP Cheney right about President Trump and Republican Party?

Going to talk about the ad that Liz Cheney just put out.

Dick Cheney torches Trump in ad: 'He's a coward' - https://news.yahoo.com/dick-cheney-torches-trump-in-ad-hes-a-coward-200108029.html

“In our nation’s 246 year history there has never been an individual who is a greater threat to our Republic than Donald Trump.” Dick Cheney - https://twitter.com/Liz_Cheney/status/1555270027871338496