Given that the U.S. has already been involved in Haiti, and that the President was arguably not legal (i.e. there is no current valid President), I have little

Given that the U.S. has already been involved in Haiti, and that the President was arguably not legal (i.e. there is no current valid President), I have little doubt. The Taiwan precedent makes sense in the abstract, but militarily the prospect of potentially being in conflict over Taiwan makes it all the less likely the U.S. would let China get a foothold that close to it.