Billionaire ex-Dem. donor Bill Ackman shares slew of Biden conspiracy theories after he ended 2024 run - including frightening claim that president is dying

Billionaire Bill Ackman has shared a host of wild claims on his X account including a suggestion that President Biden might be terminally ill.

The 58-year-old investor shared a litany of suggestions concerning the embattled commander-in-chief who announced he was standing down on Sunday afternoon.

The claims shared by Ackman include concerns that Biden might be terminally ill, as well as others around the actual letter. 

Speculation around the health of Biden have since been fueled by his youngest brother Frank who said he would enjoy 'whatever time we have left'. 

While, conspiracy theorists have also been speculating over the authenticity of the letter with commentators saying that his signature looked like it was photocopied. 

Ackman has continued to push this narrative on his X page, frequently sharing past instances of Biden's signature which show examples of it not being underlined. 

The claims shared by Ackman, seen here in 2017,  include concerns that Biden's signature was faked, the letter was not on an official letterhead and that he may be terminally ill

Biden made the announcement that he was backing out of the presidential race by sharing a letter to his social media on Sunday afternoon

Ackman shared one post by another user that said: 'Not a conspiracy theorist but the lack of any still photo or proof that Joe Biden signed the letter or even a brief on camera sighting has shades of Soviet Regime Change from back in the day.'

Speaking with CBS, Frank Biden said that the president's health was part of his decision to stand down.  

He told the outlet: 'I'm incredibly proud of my brother. Selfishly, I will have him back to enjoy whatever time we have left.'

That choice of phrase sparked speculation from Ackman and others that Biden has a secret illness he has not disclosed. 

A top Parkinson's disease specialist visited the White House multiple times this year, although officials have insisted Biden is in good health. 

'He is a genuine hero, country over self, it sounds corny in our cynical political environment but he nor I are cynical,' Frank's statement continued. 

'The goal remains the same, defeat Trump and continue the work that Joe has done. My hope is that our party rally's around this heroic act.'

When asked by the outlet if his brother's overall health played a role in him standing down for reelection, he said: 'In my humble opinion, absolutely'.  

Biden made the announcement that he was backing out of the presidential race by sharing a letter to his social media on Sunday afternoon. 

The president has been isolating with Covid-19 at his holiday home in Rehoboth Beach, Delaware, when his team composed the letter. 

Conspiracy theorists have been speculating over the authenticity of the letter with commentators saying that his signature looked like it was photocopied

Donors had pulled millions of dollars in funds, the list of Democrats telling him to drop out was growing by the day, and polls suggested that his chances of beating Donald Trump were dwindling after his disastrous debate performance.

Jill Biden was there when her husband eventually made the historic call, giving into mounting pressure. 

A spokeswoman for the First Lady said it was the president's judgment alone, and confirmed he made it late.

On Saturday evening, Biden summoned to his side two men who have been there since his political start, advisers Steve Ricchetti and Mike Donilon. 

It was Ricchetti and Donilon who brought with them devastating new data which would help to make up Biden's mind.

Ackman has continued to push a narrative on his X page over his disbelief that Biden actually signed the letter and that he is terminally ill 

They revealed the latest internal campaign polling, taken since the debate, which showed he could no longer beat Trump. 

Biden's decision was made soon after, and he asked Ricchetti and Donilon to start drafting a letter, and to begin the process of how to make a public announcement, DailyMail.com confirmed. The president also began telling his family.

After his announcement, Kamala Harris announced she was running for the Democratic presidential nomination. 

A number of prominent Democrats have since came out in support of Harris including California Governor Gavin Newsom. 

Regardless, Trump has said already that he thinks Harris will be even easier to defeat than Biden. 

National polling averages show Harris trailing Biden 48 to 46 percent, according to the New York Times. 

The president has been isolating with Covid-19 at his holiday home in Rehoboth Beach, Delaware, when his team composed the letter

After his announcement, Kamala Harris announced she was running for the Democratic presidential nomination

That is an improvement on Biden's scores in the same polls, which showed Trump beating him 47-44.

In swing states and even states that have turned reliably blue in recent elections, Harris out-polls Biden even when losing.

She's within one point - 48-47 - of Trump in Pennsylvania, besting Biden, who was losing 48-45 to Trump.

In Virginia, she leads Trump by five points over Biden, who only leads Trump by four percentage points.

However, those polls were conducted before the assassination attempt on former President Trump and before Biden dropped out.