Mike Lindell, a ally of Trump, holds the notepad appeared to support imposing martial law and replacing the director of the CIA.
Lindell, CEO of MyPillow, an ally of US President Donald Trump, holds a briefcase as he stands outside the doorway leading into the West Wing corridor, the presidential office of the White House, before entering.
The document mentions Sidney Powell, a lawyer in Trump's legal team, whom the President once intended to invite into the White House.
The document appeared to support the appointment of an attorney named Colon to assume a role with regard to national security.
The White House press assistant was caught off guard by the photos as they were shared across Twitter, saying they had no idea what happened.
Lindell is one of the few Trump supporters who has remained after the January 6 Capitol Hill riots.
Even as Joe Biden is certified by congress to win the election, Lindell continues to insist Trump will take office for a second term next week.
There is no move to suggest that Trump will fire Gina Haspel, director of the US Federal Bureau of Investigation (CIA), or ask Patel to come to CIA headquarters to take over, according to sources familiar with.
Jim Acosta, CNN's White House correspondent, said he spoke with Lindell.
"Lindell also stated that the phrase 'martial law' is not in the document, although it can be seen in the photos," Acosta wrote on Twitter.