If he lied about his education, he needs to step down. Period.
Clinton lied and lied and lied. Clinton was impeached, but not tried.
Obama will not step down or be impeached because of lies about a degree. That could be spun as a ‘mistatement’ or ‘error’.
What ***could*** get rid of Obama are his birth certificate and NBC controversies. That’s not saying anything will ever come of any of that, but ***if*** something broke in that subject area, then yes we could see a resignation or impeachment, possibly.
The other thing that can get rid of Obama, in the sense that he will not run for a second term, is that States are now passing laws that presidential candidates must furnish unequivocal proof of their eligibility including official long-from birth certificates to prove NBC as NBC is defined to be born in the United States of two citizen parents.