Jim Bridenstine: “The challenge that we have as a Nation is that, the longer programs go, the more political risk that we have.”

I do think this goes back to Representative Cartwright's question regarding kind of new approaches.

Do we want to lead the world in space or do we want to yield that to somebody else?

When we use different types of rockets, we have dissimilar redundancy.

The only rocket that is going to be available to take humans by 2024 is the SLS rocket with the Orion crew capsule.