House Speaker Mike Johnson has dismissed former President Donald Trump's claims that President Joe Biden will use cocaine during the upcoming presidential debate, though he suggested Biden might use 'energy drinks or something' to enhance his performance. Trump and his allies have repeatedly insinuated, without evidence, that Biden will be on drugs to perform better in the debate. Despite these allegations, Biden's campaign focuses on discussing economic recovery and job growth, while addressing concerns about his cognitive abilities and age. Experts warn of 'confirmation bias' during the debate, as viewers may interpret candidates' performances through their preexisting beliefs. The debate, moderated by CNN, will be a crucial moment for both candidates to address key issues and sway undecided voters.