

I’m fairly sure this is less “pro-Russia” and more “anti-large-new-devastated-member-causing-Poland-to-get-a-far-smaller-slice-of-the-EU-funds-pie”.
While Law & Justice’s [sic] tendencies overlap with Putin’s a lot, IIRC they’ve been consistently anti-Russia, especially as it’s a personal beef now since the party boss’s brother was killed in the Smolensk air disaster, which he seems to blame on Putin.
Personally: