 I should or shouldn't do. I am running. On MSNBC, he took issue with some members of his own party. I'm getting so frustrated by the elites. Now, I'm not talking about you guys, but about the elites in the party, who they know so much more. Biden also made his case in a letter to congressional Democrats this morning. CBS's Nancy Cordes says concern about the president's age and fitness go beyond members of his own party.