It was Montana, or one of the Dakotas. And you are correct, Newsom banned California State travel to the particular State (let's call it Montana), but went there with his family for a vacation. Like the rest of his Dem brethren he is always exploring new limits of hypocrisy.
Being a wealth sovereign has it’s benefits.
Yes as I recall he went to Montana. State travel was banned to Montana and some other states, because some other states do not have liberal laws and policies on LGBT and climate issues.
Apparently it was okay for him to go to Montana because he was there on a personal vacation and not official business.
All you have to do is look at Venezuela to see the history of Socialism and Communism. There are the elites eating high on the hog and the Plebes eating out of their garbage cans. Today it is the billionaires like Bill Gates and John Kerry wanting to establish a “New World Order” with the same result.