U.S. Rep. Marie Gluesenkamp Perez and other Democrats have criticized President Joe Biden's debate performance, predicting it could lead to a loss against Donald Trump in the upcoming election. Rep. Lloyd Doggett has publicly called for Biden to withdraw from the race, while Michigan Governor Gretchen Whitmer refutes claims that she suggested Biden can't win Michigan, though reports indicate she expressed concerns about his performance. Democratic leaders, including former House Speaker Nancy Pelosi, continue to support Biden, emphasizing his overall presidency rather than debate performance. Despite polling indicating a significant portion of Democrats think Biden should step down, he maintains majority support within the party. The Biden campaign is ramping up efforts to counter Trump, warning about the potential dangers of his presidency.