trump. donald trump wouldn't make the team. >> reporter: in 2012, he used the senate floor of accusing mitt romney of not paying his taxes, even though he had no evidence. >> he has refused to release his tax returns. let him show his tax returns because he hasn't. >> reporter: some called it mccarthyite. >> well, they can call it whatever they want. he didn't win, did he? >> reporter: years later, reid asked to meet with romney to make amends. >> shook hands. >> reporter: why was it important for you to tie up the loose end? >> i try to do that with everybody. >> reporter: reid inspired fierce loyalty from many of his long-time aides and fellow senators. not out of fear but affection. he often told colleagues i love you, even in public. he had a storybook romance with his wife, his high school sweetheart. the two converted to mormonism