If he is ruled ineligible who will be the president elect?
1. Can it be Biden as he wasn’t even nominated?
2. If there were no democrat eligible that was nominated then who would it be?
3. Are the police prepared for the rioting that most definately WILL happen if he is ruled ineligible?
This is why it should have been taken care of a long time ago. Before a potential candidate can even be considered he/she should be required to prove their eligibility.
I believe the 20th Amendment has all the answers you're looking for.