...and I've been saying for years the DA has strayed from its traditional liberal values ....every effort made to evade responsibility,    

Give examples of these efforts, what happened when and how.  

Be clear about your time span please - it's a young party. Don't keep saying - tell what you DID to make things better!   The "rare instances of questionable behaviour" quoted elsewhere, have been attended to promptly and without favour.   Keeping the bigger picture before is difficult for many. 

The DA and the ANC are presently incomparable, and exist in this rank order, with greater space in between! Standing too close in the slips means the ball whistles by... without being seen!