According to a report by The Washington Post on the 20th, in just over two weeks, a rare scene has occurred in the US political arena: former Democratic presidents Barack Obama, Joe Biden, and Bill Clinton have publicly condemned the Trump administration and its policies. Historians have stated that it is unusual for former presidents in the United States to publicly criticize their successors, and it may be "unprecedented" for three former presidents to do so simultaneously in such a short period of time.