Julián Castro went straight for the jugular during Thursday night's Democratic debate, telling former Vice President Joe Biden that when it comes to health care, "I'm fulfilling the legacy of Barack Obama, and you're not."

Castro told Biden that his health care plan would leave 10 million people without coverage, while he wants "every single American family to have a strong Medicare plan available. If they choose to hold on to strong, solid private health insurance I believe they should be able to do that, but the difference between what I support and what you support, Vice President Biden, is that you require them to opt-in, and I would not require them to opt-in." He added, "Barack Obama's vision was not to leave 10 million people uncovered. He wanted every single person in this country covered. My plan would do that, your plan would not."

Biden interjected, saying people would not have to buy-in under his plan. "Are you forgetting what you said two minutes ago?" Castro shot back, a line that earned "oooohs" from the audience. "If you lose your job, for instance, his health care plan would not automatically enroll you, you would have to opt in," Castro continued. "That's the big difference — I'm fulfilling the legacy of Barack Obama and you're not." In response, Biden muttered, "That'll be a surprise to him." Cue more "oooohs."

It appears as though it's actually Castro who forgot what happened two minutes ago, several Twitter fact-checkers said. Julie Rover, chief Washington correspondent for Kaiser Health News, tweeted that Biden's plan would actually "auto-enroll everyone under 138 percent of poverty — the population currently eligible for the Medicaid expansion in states that have adopted it."

The Daily Beast's Sam Stein also backed Biden's version of events, saying that he "re-watched the segments where Biden talked health care and it seems pretty clear to me that Castro is, well, wrong. He never said opt-in. He said that if people lose their jobs they can automatically buy into Medicare." Stein later tweeted a follow-up, revealing that "In fact, Biden at one point said the opposite: 'Anyone who can't afford it gets automatically enrolled in the Medicare-type option we have.'" Catherine Garcia

Mort Drucker, the beloved artist known for his work at MAD magazine, has died at 91.

Drucker died Wednesday at his home in New York, his friend John Reiner confirmed to The New York Times. Reiner told CNN's Jake Tapper his death was not thought to be related to COVID-19.

After joining MAD in 1956, Drucker's hilarious caricatures satirizing pop culture soon became iconic, and he illustrated more than half of the magazine's movie parodies from the 1960s through 2008, per the Times. In a 2000 interview with the Times, he noted, "I think I've drawn almost everyone in Hollywood."

Among Drucker's other notable work includes the poster for George Lucas' American Graffiti; according to The Hollywood Reporter, Lucas personally drove to Drucker's home on Long Island to convince him to draw it.

"The World has lost a not just an extraordinary talent but a shining example of kindness, humility and humor," the National Cartoonists Society said in a statement.

MAD fans on Thursday quickly began sharing their favorite cartoons from Drucker's legendary career, including his parodies of Jaws and Star Wars. "Many of his illustrations are as vivid in my mind as the movies and TV shows that inspired them," The New York Times' Dave Itzkoff wrote.

Reiner told CNN's Jake Tapper that Drucker's final words to him were, "I'm the luckiest man — I've had a wonderful life." Brendan Morrow

First lady Melania Trump is officially donning a face mask during the COVID-19 pandemic, although the jury's still out on whether her husband will follow suit.

In a social media post Thursday, the first lady shared a photo of herself wearing what appears to be a surgical mask, touting the Centers for Disease Control and Prevention's recommendation "to wear cloth face coverings."

"Remember, this does NOT replace the importance of social distancing," she wrote. "It is recommended to keep us all safe."

Melania's masking comes one week after President Trump announced he would not be wearing a mask, despite the CDC-issued guidelines urging people to do so. At the time, Trump implied that it would be odd to be "sitting in the Oval Office, behind that beautiful Resolute Desk" while wearing a mask, so it's unclear how he's taking this news.

The photo of the first lady appears to show her wearing a surgical mask rather than the CDC-recommended "cloth face covering," the former of which is recommended only for use by health care professionals and medical first responders amid critical supply shortages.