What you are doing is classic GOP middle class attitudes ‘It's not fair, it's not fair. The Dems lie and misrepresent us and their real goals. They are bad, bad, bad.’
It does not matter how bad they are, the point is to defeat them and those who can definitely are not ‘Dignity Republicans’.
Your memory fails you. Bill Cassidy beat, quite handily, Mary Landrieu, who had won election three times, including beating John Kennedy in 2008.
Cassidy will win re-election handily this fall. He will have no GOP opposition, and no significant Democrat opponent. Edwards is the ONLY Dem who has statewide appeal. For some unknown reason, otherwise sane Louisiana conservatives are mesmerized by his act, and have fallen for it twice.