Agreed. Putin seems convinced he can win. He could resort to a limited (even just one) nuke attack. Shock and awe. How would the West and Ukraine react?At this point, the smart move for Putin would be to say "OK, we've accomplished all our goals of the Special Military Operation" and from now on, we'll only protect those areas we've annexed into Russia to protect that Russian population. No more offensive operations. We accept a 100% cease fire."
You know Trump would agree to this and put Ukraine in a bad position.
I can't see a downside for Putin in this and he would be popular at home (well, except for the families of the almost 1 million casualties)
He could even fire off one nuke and deny it. He doesn’t really care. Especially if Ukraine hits Moscow or St. Pete.