Rather sad since Walker seemed more classy and Trump was very complimentary on his exit. It make no sense to do that. Walker does have a great future if he continues in the fashion he did as governor and not bitterly attacking Trump who is obvious a favorite of many Americans.
What these candidates (maybe) don’t realize is that when they attack Trump, they attack his supporters... who are 1/4 to 1/3 of primary voters. And we have long memories.
I think his great future is now very local. Who knows what the Geriatric Old Plotters are breathing into his ears though.