Will column: How can presidential candidates be so silly?

If California Sen. Kamala Harris is elected president in 2020 and reelected in 2024, by the time she leaves office 114 months from now she might have a coherent answer to the question of whether Americans should be forbidden to have what 217 million of them currently have: private health insurance. Her 22 weeks of contradictory statements, and her Trumpian meretriciousness about her contradictions, reveal a frivolity about upending health care’s complex 18% of America’s economy. And her bumblings illustrate how many of the Democratic presidential aspirants, snug in their intellectual silos, have lost — if they ever had — an aptitude for talking like, and to, normal Americans.