Is Biden a robot, or is Trump in cognitive decline?

The Press Secretary has told us to refer to Trump's truth social posts when we have questions about the administration's position on things. So, why do you believe Biden was executed in 2020 and was replaced with a robot? If you don't believe that, are you not concerned about the cognitive decline of the president? Are you trying to hide what is in plain sight? I see so many signs of sundowning. His speeches are more erratic than they were in his first term. His replies are often completely off-topic. Like being asked about Harvard and replying about Harlem. Every day he says he's never heard about things that have been in the headlines, and to ask other people. It feels like MAGA is in denial or purposely trying to cover up escalating cognitive decline. It wouldn't be the first time you accused Democrats of something that was a Republican issue. Anyway, please reply with why Republicans believe Biden was replaced with a robot since that's an official administration position.