Former Democratic National Committee chairman Howard Dean said Thursday on MSNBC’s “The Beat” that Republicans who refuse to get vaccinated against COVID-19 were “disgusting.” Dean said when asked about reports that former President Donald Trump tested positive for COVID a few days before the first presidential debate in 2020, “Look, Trump was the most immoral and irresponsible president in the history of the country. He may or may not be the worst president, but he certainly is in contention. But he was certainly the one with the fewest morals and scruples and certainly the craziest in terms of psychiatric illness....