Did 'person of the year' Pope Francis influence world more than Assad, Snowden?

(CNN) - Ever since Jorge Mario Bergoglio became Pope Francis in March, he's been on a mission to engage those who had perhaps given up on the church. He washed and kissed the feet of inmates of a juvenile detention center; embraced a severely disfigured man in saint peter's square, and is stirring up controversy about how much he's open to change.

"If someone is gay and he searches for the lord and has good will, who am I to judge?" he told reporters in July.

Such efforts have propelled Pope Francis to be named Time Magazine's person of the year. The last time a pope was on this cover was when John Paul II took the title in 1994.

Michael Crowley, Time's deputy Washington bureau chief joins CNN's "The Lead with Jake Tapper," to discuss how the pope landed the cover.

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