https://www.usaspending.gov/award/CONT_AWD_NAS1510110_8000_-...
So far this year NASA has executed 7 contract modifications (from February through September), under which it has paid Roscosmos an additional US$2.6 million. While that's not a huge amount of money, it doesn't look like there is a hard prohibition on NASA paying Roscosmos for services.
https://www.reuters.com/technology/space/russia-us-agree-add...
August 25, 2023
> Aug 25 (Reuters) - Russian and U.S. space authorities have agreed an additional flight for an American astronaut on board Russia's Soyuz MS spacecraft, Interfax news agency said on Friday, in a rare sign of bilateral cooperation at a time of high tension over Ukraine.
You have the same internet I do, you should be able to find this information yourself. Stop being a dumbass, unsubscribe from your reddit or wherever it is that's influencing you to think you can know things by bullshitting instead of researching.
That is entirely different from actively paying Russia for a flight, where, for starters, there's the political problem of having to give Russia money and somehow avoiding politicians turning that into an issue (especially considering the election year). Then there's the problem that it'd give Russia leverage to demand a loosening of restrictions. Russia has already been complaining about the sanctions limiting their access to components for spacecraft.