| 
	
	
		
		
		
		 The 22nd amendment thing is a little murky, but the bottom line is no former president would want to be VP anyways, so it wouldn't happen. 
 
A more likely scenario would be one in which a former president became speaker of the house, and therefore 3rd in line. 
		
	
		
		
		
		
		
	
	 |