Trump forgets the name of his White House doctor - seconds after challenging Biden to a cognitive test

Donald Trump forgot the name of his White House doctor just moments after saying Joe Biden should take a cognitive test.

“I took a cognitive test, and I aced it. Doc Ronny — Doc Ronny Johnson,” Trump said, attempting to refer to Ronny Jackson, former White House physician turned US Rep.

“Does everyone know Ronny Johnson, Congressman from Texas? He was the White House Doctor,” Trump continued.

Biden’s campaign circulated the clip on social media, pointing out Trump’s error and confusion over the name. James Singer, a spokesperson for the Biden campaign, toldNBC News the former president is “unhinged, unable to focus, and diminishing before our very eyes.”

“His only coherent thoughts this week were his affinity for more corporate tax cuts for billionaires, tax increases for the middle class, and his disdain for the people of Milwaukee,” Singer told NBC News.

Trump, 78, has previously challenged 81-year-old Biden to cognitive tests and highlighted the president’s gaffs.

Trump, however, has repeatedly made similar public slip-ups. Earlier this year, he confused Nikki Haley with Nancy Pelosi and called Hungarian Prime Minister Viktor Orbán the leader of Turkey.

In January, Trump also claimed to have “aced” a more recent cognitive test. “I don’t know if you saw, but a few months ago, I took a cognitive test my doctor gave me,” Trump said in January. “I said, ‘give me a cognitive test, just so we can you know,’ because you know what the standards were, and I aced it.”

Trump also repeated his long-time claim that he aced his cognitive test, which Jackson administered in 2018. “I think he should take a cognitive test like I did,” Trump said of Biden just before his mix-up.

Jackson, 57, was elected to the House of Representatives