@msnbc: More than 700 bipartisan senior leaders who served in the military and other offices and agencies have endorsed Vice President Harris in an open letter published by National Security Leaders for America. “This election is a choice between serious leadership and vengeful impulsiveness,” said the group. Sergeant Major John Estrada tells MSNBC's Rev. Al Sharpton it was important to put this letter out now to "educate and inform the American people that former President Trump is not qualified to be president of the United States again." #harris #trump #election #endorsement #nationalsecurity #military #leaders #endorse #2024election #politics