Maybe it is. However, I am well aware that the Constitution limits Presidential term limits. I would put nothing pass them at all. They have done a lot of un-Constitional things.
One more thing. Lets use your style of debate. I would like to hear scenario where someone who is not a natural born citizen or refuses to prove his NBC could become President, despite the Constitutional requirement to be such.
Secondly, its obvious I do not support or defend anything nobama nor the liberals do, BUT I have seen nowhere anyone has filed any suit against the Administration for Constitutional violations by the POTUS or his underlings. The Office of President is set up with and Congress has unwittingly allowed much more "un-defined" authority. There have been many trial balloons suggesting they were about to make some unconstitutional action, which I think is to keep Conservatives off balance sort of like a magician distracts, while the progressives, soros' n friends and nobama raiding the Treasury.
Regarding your challenge per NBC, my understanding is that there are two paths to prevent a non-NBC from taking office. One is for States to require proof of a candidate meeting Constitutional requirements to get on the ballot and second is when the Electoral College is confirmed by the House. Any Representative can issue a challenge at that time, speak now or forever hold your peace.
Once the POTUS is sworn in, regardless of how he got to that point, he legally is President and if sufficient proof of non-NBC is presented he can be impeached.
For reasons only the Founders knew, they did not clarify NBC nor give the Constitution a pathway to require unequivocal proof of NBC. For most of our history it was relatively easy to see NBC from one’s public personal history and most holders of the office had sufficient integrity to not try to game the system, as apparently did nobama.