JackieWeaverHandforthCouncil
A criminal conviction would disbar him from being able to run again.
There is nothing in the Constitution which debars a felon from running for President. He could run again with a criminal conviction.
There is possibility in 14.3
"Section 3.
No person shall be a Senator or Representative in Congress, or elector of President and Vice President, or hold any office, civil or military, under the United States, or under any state, who, having previously taken an oath, as a member of Congress, or as an officer of the United States, or as a member of any state legislature, or as an executive or judicial officer of any state, to support the Constitution of the United States, shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof. But Congress may by a vote of two-thirds of each House, remove such disability."
In that case the onus would be on those wishing to allow him to stand, to get the two-thirds majority in both houses.