Inside the 2020 campaign with the potential First Gentlemen

When Amy Klobuchar was first breaking into politics two decades ago, a TV news crew in Minneapolis asked if they could film her family at their house one morning getting ready for the day. But Klobuchar, who started out in public office as the top prosecutor in Minnesota’s largest county, turned them down.

“People were going to realize that my husband makes the peanut butter sandwiches” for their daughter, Klobuchar recounted in an interview. Twenty years ago, she said, “I didn’t want them to know.”

The presidential candidate laughed. “Now,...