Video captures rare moment between Hillary Clinton and her granddaughter

During her presidential campaign, Hillary Clinton often mentioned her role as mother and grandmother. She did not, however, often show that side of her to the public.

A video clip shared on Twitter gives us an unique glimpse into this part of Clinton's life. New York Magazine reported that the clip was recorded backstage at an event in May, but it was not widely distributed:

In the video, Clinton is FaceTiming with her granddaughter, Charlotte Clinton Mezvinsky. She turned two years old in September; Clinton attended her birthday party amidst debate prep.

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Both Bill and Hillary Clinton are seen talking to Charlotte. They kiss her good-bye; at one point, Clinton imitates a train, "Chugga chugga choo choo!" Chelsea Clinton's husband, Marc Mezvinsky, is also heard over the phone.

Clinton FaceTiming her granddaughter appeared to be part of her routine. The day before the election, CNN reporter MJ Lee shared a photo of Clinton speaking with Charlotte while on an airport tarmac:

With as such a hectic schedule as she had during campaigning, it's easy to see that Clinton became an expert in FaceTime.