O'Rourke revealed during the interview for the April issue that he wanted to run for president, adding that he is "just born to be in it". However, it lacks a section describing his public policy positions, which didn't go unnoticed by several Twitter politicos.
O'Rourke's 2018 Senate campaign didn't fit the usual mold.
O'Rourke has come under fire from some liberals in the months since his Senate race ended for appearing to break a pledge not to accept money from fossil fuel companies.
It wasn't the first time O'Rourke generated national attention for taking on Trump.
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His track record during six years in the US House of Representatives is thin. "Skeptics question whether O'Rourke's political transcendentalism can sustain the meat grinder of a national election".
He wrote: "I'm really proud of what El Paso did and what El Paso represents". Seated on a couch next to his wife, O'Rourke announced, "Amy and I are happy to share with you that I am running to serve you as the next president of the United States of America".
Trump relished the face-off, dismissing the Democrat's crowd size (which was later estimated to be at least as big as Trump's), claiming that this "may be the end of his presidential bid" and that O'Rourke was simply "a young man who's got very little going for himself except a great first name".
Speaking to Vanity Fair for a profile that was published online just hours before he announced his 2020 bid, O'Rourke said "he wants to shore up the Affordable Care Act and make Medicare part of the healthcare marketplace, and eventually make "healthcare for all" a reality". "So if I were to run, I think it's just so important that those who would comprise my team looked like this country".