Maybe so, but it can't happen right away. The new troops will be in place by the time a new chunk of money is needed. By then, the democrats will be in a bind. They say they "support" our combat troops. I don't think that they can easily cut them off.
Thus far the Democratic House seems more interested in resetting the clocks so the 100 hours takes 2 months, Mondays off for football and no smoking in the cloak room. I suspect a funding cut is far beyond anything Pelosi is able to tackle.