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.
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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.
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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.”