Sen. Al Franken (D-Minn.) is many things: a “Saturday Night Live” alum, a best-selling author, a big fan of Hillary Clinton’s — and now a baby whisperer.

On a recent trip back home to Washington after campaigning for Clinton in Fort Lauderdale, Fla., Franken, a grandfather of three, reached across the aisle (literally) and led the plane in a rousing rendition of “Itsy Bitsy Spider” to soothe a crying baby.

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The scene was captured on video by a Huffington Post editor who posted on Twitter that the song was “part of a joint effort to calm a baby.” According to Franken’s Senate office, the former entertainer led the group sing-along of the popular nursery rhyme after another passenger had tried “The ABCs.” It’s unclear why the baby was upset.

Franken is no stranger to wee ones. Franken and his wife, Franni, who currently live close to the senator’s office on Capitol Hill, are moving much closer to his daughter, Thomasin, and her two children with husband Brody Greenwald.

“We’re moving  two blocks away from them,” he told the co-hosts of “The View” in an interview earlier this month. “I want to see them all the time.” The proud grandpa then conceded, “Mainly my daughter wants my wife there.”