Is the US space program currently reliant on Russia?

The US space program is not currently reliant on Russia for transporting astronauts to the International Space Station (ISS). Since 2020, NASA has been using SpaceX's Crew Dragon spacecraft to ferry astronauts to and from the ISS, ending the US reliance on the Russian Soyuz spacecraft for crew transportation. However, the US still relies on Russia for some aspects, such as purchasing Soyuz seats as a backup option in case of any issues with Crew Dragon. Additionally, the US and Russia continue cooperating on various aspects of space exploration and scientific research.