Why is Russia still welcome on the International Space Station despite geopolitical tensions? According to Wikipedia:
The Wolf Amendment is a law passed by the United States Congress in 2011 that prohibits the United States National Aeronautics and Space Administration (NASA) from using government funds to engage in direct, bilateral cooperation with the Chinese government and China-affiliated organizations from its activities without explicit authorization from the Federal Bureau of Investigation and the U.S. Congress.
There was the Wolf Amendment, which was passed in 2011 while tensions between China and the United States were low, so I am wondering why a similar amendment wasn't passed against Russia given that geopolitical tensions between the two countries are at an all-time high. Is there something that I am not aware of that might give the United States a second thought?