If we are talking about Starship, this would require SpaceX demonstrating:
- A crew compartment for Starship
- Starship landing and taking off from the Moon
- An elevator to take them to/from the surface
- A tanker
- A LEO fuel depot
- Reliable in-orbit fuel transfer (more than 10 needed for Lunar Starship
This is assuming a plan using an orbit current SLS/Orion can reach. If that's not possible, NASA also needs a higher energy service module that can place Orion on a circular lunar orbit.
There are only 4 years until 2030. There is absolutely no way the US can do that by 2030.