So I suggest that all elected officials be age-limited such that their term in office ends at or before 70. This means that a House representative is can no longer run as of their 68th birthday; a candidate for President is blocked after their 66th, and a candidate for Senator is stopped after their 64th birthday.
There is a perfectly good reason for this limitation: it reduces the chance of an elected official dying in office and starting a scramble like we have seen several times over the last fifty years. Not to mention mental issues.
Lifetime appointments? They stop on the 70th birthday, too.
Doesn't stop the over-70 crowd from taking on advisory appointments, so they can continue to contribute if they so choose.
Disclaimer: I'm above FRA (full retirement age) in making this recommendation.
We wouldnt have President Trump under your rules so no thank you.