Caitlyn Jenner posted her first tweet at 12:17 p.m. on Monday. Four hours and three minutes later, she set a new Guinness World Record for the fastest time to gain 1 million followers on Twitter.

In doing so, Jenner broke the previous record, held by President Obama who earned the title when he began his @POTUS account in May. It took Obama just under five hours to smash the record, set in 2014 by Robert Downey Jr.

[Naked Kim Kardashian won’t break the Internet. The Internet would break without naked Kim Kardashian.]

While Jenner’s debut on Twitter as Caitlyn broke the president’s record, it also prompted congratulations from administration officials such as senior Obama advisor Valerie Jarrett, who tweeted “nice to meet you.”

Also tweeting support: @BarackObama, an account run by Organizing for Action staff that sometimes posts tweets signed by the president. (This particular tweet was not signed by Obama.)

As of this writing, Jenner’s first tweet — a photo of the Vanity Fair cover showing her with the quote, “Call me Caitlyn” — has been re-tweeted more than 180,000 times.

News of Jenner’s new name (she used to be known as Bruce) prompted 1.5 million tweets, according to Twitter, peaking at 11,000 tweets a minute.

[This post has been updated.]

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