Senator Mark R. Warner (D-Va.), chair of the Senate Intelligence Committee, is spearheading an effort to gather a group of Democratic senators to request President Joe Biden to withdraw from the presidential race. According to sources with direct knowledge of the situation, Warner is expressing concerns that Biden is no longer able to run a campaign capable of defeating former President Donald Trump. This initiative reflects growing sentiment among Democratic senators that Biden should not continue his candidacy. Warner has told others that he is deeply concerned about Biden's ability to run a competitive campaign.