Donna Edwards actually said...

I certainly want to make sure that NASA works vigorously to make sure that costs are kept under control as the agency embarks on the joint M...

But not because you have gotten an explicit commitment from the Administration?

What we don't know is whether or how that story of success will continue, and especially whether the U.S. will retain its leadership role.

Over the past 15 years, NASA has carried out a systematic exploration of Mars using orbiting spacecraft, landers, and rovers.