When age in a presidential candidate was a major issue:
When age in a presidential candidate ceased being a major issue:
Notice a trend?
BTW, the reason GWB isn't here is because both in 2000 and 2004 he ran against candidates within his own age group, so playing the Age Card would have accomplished little. So let's sit and see if the media makes age and issue, or do they make those trying to make age and issue the issue.