I don't think, that NASA could help us with our ecological and economical problems we have. Don't get me wrong, I'm a kind of utopist, idealist and phantast, but also a realist. I'm no US-citizen and it seems that the majority here is for Bush Jr, but I'm not.
I have no great opinion about him (don't worry, the same applies to this narcistic Michael Moore guy).
After my humble estimation, humankind has doomed theirselve. In 50 years it will be shure, that the global economic collaps, in latest 100 years civilization is gone and in 1.000 years humans are history. Hey, I'm not such a neurotic pessimist!
Why should USA invest in such an abstract thing like NASA?
You don't believe really that we live in hundred years like in Star Trek or Wing Commander? That was sixties ideals of future perspectives, nothing more...
Otherwise, I can't give you real advice who you shall vote. I live not in the USA and don't know much about the goals of the democratics. But I know who I don't would vote.