"America's civil space program is in disarray, with many aspirations and hopes but few concrete, realizable plans for future missions or strategic direction," he said, adding that NASA lacks what it needs to pull off the mission (and throwing some shade at the agency's strong Twitter game). "We pretend that we are on a '#JourneytoMars' but in fact, possess neither the technology nor the economic resources necessary to undertake a human Mars mission now or within the foreseeable future. What is needed is a logically arranged set of short-term, realizable space goals-a series of objectives and destinations that are not only interesting in and of themselves, but whose attainment build space faring capability in the long term."
The testimony claimed that it could cost anywhere from $500 billion to $1 trillion for NASA to get humans to Mars, numbers that are reasonable based on using NASA's very costly and overpriced SLS/Orion rocket and capsule. The congressmen were of course interested in this, not because they want to get to Mars, but because they see gobs of pork for their districts in these numbers.
However, I expect that when SpaceX begins successfully launching its Falcon Heavy rocket in the next two years while simultaneously putting humans in space with its Dragon capsule, and does both for a tenth the cost of SLS/Orion, those same congressmen will dump SLS/Orion very quickly. Though they want the pork, they also know they don't have $500 billion to $1 trillion to spend on space. The private sector gives them an option that is both affordable and of strong self-interest. The more realistically priced and designed hardware of private companies will give them a more credible opportunity to fund pork in their districts.
"Life is a garment we continuously alter, but which never seems to fit." -- David McCord