The years give him perspective. For example, his experience with the 100 year’s war gives him great insight into US policy in Afghanistan – an forever wars, in general. Having lived at a time when women were chattel has helped him navigate the complex legal issues raised during the confirmation hearing for Brett Kavanaugh.
Grassley is not the only millenarian in Congress.
Experience with Mongol hordes strengthened his conviction that a baronial aristocracy was the best form of government. Particularly for Barons and their eldest sons.
Urbanization threw a spanner into the world view.
Why vote for a 1,000 year old man? Stability! That’s why.
Note: The poster reads, “Abortion is like a rat gnawing on the head of a live sheep.”