Transportation and infrastructure are massive (literally) undertakings here in the United States. So what does it mean to oversee it all? What is the Secretary of Transportation actually in charge of and what's going on with our roads, bridges, airports, etc.?

We spoke with Secretary of Transportation Pete Buttigieg to find out.

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To see Civics 101 in book form, check out A User's Guide to Democracy: How America Works by Hannah McCarthy and Nick Capodice, featuring illustrations by Tom Toro.

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