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(Bloomberg) — Shortly after U.S. Representative Alexandria Ocasio-Cortez schooled witnesses in a Congressional hearing on campaign-finance laws, the editors at NowThis sprang into action.

The digital-media company, which makes short videos for social networks, took her remarks, added captions and its logo, and posted them on Twitter. Ocasio-Cortez retweeted the video twice to her 3 million-plus followers, and with more than 40 million views, it’s the most popular Twitter clip ever for NowThis.

“This one caught fire,” said NowThis President Athan Stephanopoulos.

Just as President Donald Trump’s 2016 election provided a much-needed boost to the news business, Ocasio-Cortez’s rise to political stardom has helped media outlets that cover her, delivering higher TV ratings and online visitors. Young, charismatic and armed with provocative ideas, she’s garnered widespread coverage — on podcasts, magazine covers, including the latest Time magazine, late-night talk shows and Twitch streams.

Fox News mentions the 29-year-old New York Democrat almost every night, far more than its rivals at CNN and MSNBC, a sign that she’s a ratings magnet for the opposition media, too. The risk for these outlets is that they oversaturate their coverage or her popularity fades — and viewers drift away.

“Media brands court her. They want her to retweet them,” said Emily Bell, director of the Tow Center for Digital Journalism at Columbia University. “She has become a platform for some media brands rather than the other way around.”