In fact, the NASA budget was not cut. It is increasing over the next few years. The initiative discussed will mean reformulating (again) the manned spacefligh

In fact, the NASA budget was not cut. It is increasing over the next few years. The initiative discussed will mean reformulating (again) the manned spaceflight program (which is a good idea). It would probably not be a good thing to "give NASA a massive budget". It would prove politically unsustainable, and then it would be cut back down. The resulting turmoil is not usually worth it.