Former president Jimmy Carter accused fellow Georgia Democrat Zell Miller of "unprecedented disloyalty" for the senator's speech at the Republican convention.
In a letter sent over the weekend, Carter also called Miller's speech "rabid and mean-spirited."
"There are many of us loyal Democrats who feel uncomfortable in seeing that you have chosen the rich over the poor, unilateral pre-emptive war over a strong nation united with others for peace, lies and obfuscation over the truth and the political technique of character assassination as a way to win elections or to garner a few moments of applause," Carter wrote.
Miller responded by reiterating that the security of his family outweighed any loyalty to the party in which he is a lifelong member.
