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Will an official diagnosis of dementia be announced for Joe Biden before 2023?

According to a Rasmussen Reports national telephone and online survey 38% of likely voters believe that Joe Biden is suffering from some form of dementia, including 20% of Democrats. Evidence for dementia has come from his age and various recorded instances of Biden misremembering details or misspeaking. At 77 years old, if elected, Joe Biden will be the oldest president during inauguration in United States history.

From a Washington Post editorial,

There is plenty of cause for concern. Biden recently announced “I think we can win back the House” and promised to ban the “AR-14.” He mistook Super Tuesday for “Super Thursday,” and forgot the words of the Declaration of Independence, saying “We hold these truths to be self-evident. All men and women are created, by the, you know, you know the thing.” In South Carolina, he misstated what office he was running for, declaring “My name’s Joe Biden. I’m a Democratic candidate for the United States Senate.” On three occasions last month, Biden declared he was arrested in South Africa trying to visit Nelson Mandela in prison — an incident his campaign later admitted never happened. He earlier described meeting a Navy captain in Afghanistan, but The Post reported that “almost every detail in the story appears to be incorrect.” He claimed to have worked with Chinese leader “Deng Xiaoping” on the Paris Climate Accord (Deng died in 1997)/. He claimed during a debate that “150 million people have been killed [by guns] since 2007” (which would be nearly half the U.S. population). He said he met with Parkland victims while he was vice president even though the shooting took place after he left office. He has declared that Democrats should "choose truth over facts” and that “poor kids are just as bright and just as talented as white kids.” He pledged to use biofuels to power “steamships.” He repeatedly gets confused about what state he is in; called “Fox News Sunday” anchor Chris Wallace “Chuck”; said his late son Beau “was the attorney general of the United States”; and confused former British prime minister Theresa May with the late British prime minister Margaret Thatcher.

Some, however, have argued that his cognitive decline is overstated. In December 2019, Biden's doctor released a statement saying that Biden was a "healthy, vigorous’ 77-year-old fully capable of taking on the role of president." Others have pointed to Biden's stutter as the primary explanation for his gaffes, rather than age-related cognitive decline.

At one press conference, Biden said to a reporter, "I’ve been tested. I’ve been tested constantly. [...] I can hardly wait to compare my cognitive capability to the cognitive capability of the man I’m running against."

This question asks, will an announcement be made before January 1st 2023 that Joe Biden received an official diagnosis of some form of dementia?

Resolution is determined by credible media reports, including in the case the announcement is post mortem.

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