He (and/or his people) have talked a lot about annexing at least part of Poland. Less sure about the Baltics, but I think there's been some yapping about them too.
So, yeah, if you listen to what he and his people say, his motivations are not in doubt...
I'd like to see one as well. I've heard that claim so often but apart from some Russian TV propagandists who have as much impact on Russian politicians as Tucker Carlson on US policy there's nothing official.
Not offhand, no. I'm going by memory from remarks by... might have been Medvedev, might have been the defense chief or somebody like that. Not officially Putin, but pretty close to a Putin mouthpiece. This would have been within the last two or three months.
It's a close Putin ally in the legislature, saying that Poland is next after Ukraine. This is in January 2024.
(Of course, my same search turns up Putin saying that Russia will not invade Poland. But he also said that they wouldn't invade Ukraine, so I don't think we should believe him. But now I'm talking out of both sides of my mouth, because I said that we should believe him when he said he would invade.
But, in short, yes, at least some of Putin's close allies have at least sometimes said that Russia will invade Poland.)
So, yeah, if you listen to what he and his people say, his motivations are not in doubt...