Still, don't you imagine, that Breaux will always be remembered as "bipartisan" even if he was quite obviously partisan, being a staunch Louisiana Democrat. I have never heard of his having endorsed any Republican candidate for anything. Nor did his mentor Edwin Washington Edwards ever endorse a Republican for anything. Nor did the other LA revered Democrats J. Bennett Johnston, Jr., Russell B. Long, and Mary Landrieu ever endorse any Republican for any office.
It's like that old adage that a man with a reputation as an early riser can sleep until noon without being missed. Breaux can be loyal to Clinton,Gore,Kerry, etc. and still be "seen" in Louisiana as "bipartisan."