Try to follow along.
If he, as President, determines (at long last) that the Department if Education is unconstitutional, he is obligated under his oath to fix that problem. So, as usual, you remain wrong no matter how much you repeat your line.
No. Congress should do so. But they might refuse to do; and in that event the President must still act pursuant to his oath of office. Indeed, he isn’t obligated to wait. An oath is an oath.
Wrong. It is not an error at all. And no matter how often you repeat your own error, you still haven’t pointed out any error on my part.