Fact Check-King Charles III did not sign proclamation stating Donald Trump won 2020 U.S. Presidential election, or threaten Joe Biden and Kamala Harris with war

Britain’s King Charles did not sign a proclamation stating that Donald Trump won the 2020 U.S. Presidential election and is therefore the country’s rightful leader. He also did not threaten U.S. President Joe Biden and Vice President Kamala Harris with war if they refused “to vacate the premises within 48 hours”.

One Facebook user (here) posted an image of Charles signing a large document on Sept. 10 and accompanied it with the caption: “SHOCKING NEWS OR THE GRANDEST HOAX! King Charles III signs a proclamation stating that Donald Trump won the 2020 Presidential election and is the rightful President by Law. Warns Biden and Kamala to vacate the premises within 48 hours or a state of war will exist between America and England.”

Similar posts can be seen on Facebook (here, here and here), Twitter (here), where it has amassed more than 1,160 shares, and Instagram (here and here). Archived posts with hundreds of shares and interactions can be found (, here and

Comments and replies to the posts appear to suggest some people believe the claim. For example, one person wrote: “Unexpected but it was going to be acknowledged somehow.”

Another commented: “Wow! This is good news.”

However, there is no evidence the monarch signed such a proclamation.

The image used in the social media posts comes from a live feed (here) of his accession ceremony on Sep. 10, 2022, at St James’s Palace, during which Charles was proclaimed king following the death of his mother, Queen Elizabeth II.

Footage (here) shows him signing an oath to uphold the security of the Church in Scotland (here and here). This is required under the Act of 1707 by which Scotland joined with England and Wales to form the United Kingdom of Great Britain. This has been done by every Sovereign at their Accession since 1714 (here). At no point does the document mention Donald Trump, the U.S. Presidential election or a threat of war.

Moreover, declaring war is currently a prerogative power of Britain’s Prime Minister, who authorizes military action on behalf of the Crown (here). Parliament is often consulted and informed before action is taken.

The claim has been addressed by other outlets (here and here ).


False. King Charles did not sign a proclamation stating that Trump won the 2020 election, nor did he threaten Joe Biden and Kamala Harris with war.

This article was produced by the Reuters Fact Check team. Read more about our fact-checking work here.