President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE mocked CNN on Monday morning, tweeting out a report that the cable news network registered its lowest viewership of the year earlier this month.

"Congratulations!" wrote Trump to his nearly 60 million followers.

He shared a Daily Caller story on CNN's ratings struggles that shows the AT&T-owned network finished 15th overall in basic cable — behind channels including the Discovery Channel, Food Network, TLC and A&E — during the week of April 8–12.

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CNN averaged 690,000 people and 180,000 in the 25- to 54-year-old demographic that advertisers covet most during the week, according to the Daily Caller report.

It aired three town hall events during the week featuring 2020 Democratic presidential candidates, including one with Sen. Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y.) on April 9 that attracted just 491,000 viewers

Trump has appeared in interviews on Fox News and Fox Business more than 40 times since taking office, but has not appeared on CNN since August 2016 when he was a candidate.

CNN declined to comment.

Updated at 11:25 a.m.