The fact that it has fallen to a Republican president to issue the Vision for Space Exploration should not keep Democrats from supporting it. Divided as Americans are on so many other issues, the expansion of humanity throughout the solar system is a cause worthy of a Grand Alliance.
Well yah, good luck with that. My own (modest and, I admit, politically naive) judgment is that if a Democrat wins the Presidency VSE is dead in the water. Not for it's flaws, but because it was Chimpy McBushitler's plan, and for that reason alone it's got to go. You spend (not you, nor you but those other guys) spend eight years equating someone with a mad dictator and a primate ... obviously nothing much good can come from it, nu?
Sow the wind and weep; killing VSE might well spell the end of any manned exploration for yet another generation, all things considered.
In twenty or a hundred years our clever robot probes that we'll throw across the system in our stead (we're saving money! for more return on our investment!) can be picked apart for salvage by explorers and colonists from a more vigorous culture.
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This is 'why' space4commerce, this is why I work gratis for Liftport. Because the species needs space and the options it will give us. More, we'll benefit by having a liberal Western culture growing ascross the system. It is not improbable that a more vigirous culture, with values anithetical to Western values, could take up the challenge and win the high ground.
Weep, should that happen.