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Photo: Nicholas Kamm/AFP/Getty Images

President Trump this week revealed yet another subject matter in which he claims to have expertise: drones and drone technology.

"I know more about drones than anybody. I know about every form of safety that you can have."

The big picture: President Trump says he's an expert on a lot of things, including ISIS, taxes, technology, nuclear arms and even Sen. Cory Booker.

  • Campaign finance: "I think nobody knows more about campaign finance than I do, because I'm the biggest contributor." (1999.)
  • TV ratings: "I know more about people who get ratings than anyone." (October 2012.)
  • ISIS: "I know more about ISIS than the generals do." (November 2015.)
  • Social media: "I understand social media. I understand the power of Twitter. I understand the power of Facebook maybe better than almost anybody, based on my results, right?" (November 2015.)
  • Courts: "I know more about courts than any human being on Earth." (November 2015.)
  • Lawsuits: "[W]ho knows more about lawsuits than I do? I'm the king." (January 2016.)
  • Politicians: "I understand politicians better than anybody."
  • The visa system: "[N]obody knows the system better than me. I know the H1B. I know the H2B. ... Nobody else on this dais knows how to change it like I do, believe me." (March 2016.)
  • Trade: "Nobody knows more about trade than me." (March 2016.)
  • The U.S. government system: "[N]obody knows the system better than I do." (April 2016.)
  • Renewable energy: "I know more about renewables than any human being on Earth." (April 2016.)
  • Taxes: "I think nobody knows more about taxes than I do, maybe in the history of the world." (May 2016.)
  • Debt: "I’m the king of debt. I’m great with debt. Nobody knows debt better than me." (June 2016.)
  • Money: "I understand money better than anybody." (June 2016.)
  • Infrastructure: "[L]ook, as a builder, nobody in the history of this country has ever known so much about infrastructure as Donald Trump." (July 2016.)
  • Sen. Cory Booker: "I know more about Cory than he knows about himself." (July 2016.)
  • Borders: Trump said in 2016 that Sheriff Joe Arpaio said he was endorsing him for president because "you know more about this stuff than anybody."
  • Democrats: "I think I know more about the other side than almost anybody." (November 2016.)
  • Construction: "[N]obody knows more about construction than I do." (May 2018.)
  • The economy: "I think I know about it better than [the Federal Reserve]." (October 2018.)
  • Technology: "Technology — nobody knows more about technology than me." (December 2018.)
  • Drones: "I know more about drones than anybody. I know about every form of safety that you can have." (January 2019.)
  • Drone technology: "Having a drone fly overhead — and I think nobody knows much more about technology, this type of technology certainly, than I do." (January 2019.)

Go deeper

U.S. women's soccer team beats Netherlands, moves on to Olympic semifinals

Members of the U.S. women's soccer team celebrate after beating the Netherlands. Photo: Laurence Griffiths/Getty Images

The U.S. women's soccer team beat the Netherlands in a penalty kick shootout on Friday, propelling them to the semifinals of the Olympic Games.

Why it matters: The win brings the U.S. team one step closer to its quest for a historic back-to-back double — winning the Olympics after emerging victorious at the Women's World Cup. The U.S. will play Canada in the semifinals next week.

Dan Primack, author of Pro Rata
1 hour ago - World

SEC clamps down on Chinese IPOs

Illustration: Sarah Grillo/Axios

Chinese companies will be unable to go public in the U.S. unless they make new risk disclosures, according to a statement released Friday morning from SEC chair Gary Gensler.

Why it matters: Chinese companies, and tech startups in particular, are already under growing pressure from their own government. Now they're also getting squeezed by U.S. officials.

2 hours ago - Sports

U.S. swimmer Ryan Murphy causes stir with doping comments

Bronze medallist Britain's Luke Greenbank, gold medallist Russia's Evgeny Rylov and silver medallist USA's Ryan Murphy pose with their medals after the final of the men's 200m backstroke. Photo: Jonathan Nackstrand /AFP via Getty Images

U.S. swimmer Ryan Murphy raised questions about the presence of doping in swimming following a second-place finish in the men's 200-meter backstroke on Thursday.

Driving the news: Murphy, who won gold in the 200-meter backstroke race in Rio, said following his race: "At the end of the day, I do believe there’s doping in swimming. That is what it is."