For an American president to choose to do that in front of cameras - utterly appalling.
And not to be forgotten - they'll dish this out to everyone but Putin.
Makes me think wistfully of Bush (Snr and Jnr!) and Reagan -
"We in America have learned bitter lessons from two World Wars: It is better to be here ready to protect the peace, than to take blind shelter across the sea, rushing to respond only after freedom is lost. We’ve learned that isolationism never was and never will be an acceptable response to tyrannical governments with an expansionist intent."
(Reagan speech to Pointe Du Hoc - worth reading in full if you are that way inclined)
For the avoidance of doubt I dont think Trump/Vance will be rushing to respond.