By Bruce Nussbaum
PUSHING FRONTIERS. Now for the third measure of who would best stimulate innovation investment. And it's one President Bush scores well on. The federal government's contributions for basic research, adjusted for inflation, have risen at 6.8% annually since 1997. (Clinton was generous as well.) Bush has poured many billions into the National Institutes of Health, supported R&D in hydrogen-based fuel-cell technology for cars and trucks, and pushed to free more spectrum for private use.