Petition Warren to endorse Sanders

My email to her is below. I encourage all of you to do the same at this contact site. 

Senator Warren,

It is obvious that you are much more in alignment with Sanders on campaign finance. I recall a video you did showing how Clinton changed her tune when she became a Senator and accepted big money. That system is corrupt and it can't help but corrupt Clinton. Your Sanders endorsement might just tilt the scales in his favor, and to be consistent with your own positions it is equally obvious that Sanders must get the nomination if that corrupt system is ever to change. You know it will not with Clinton and I urge you to use the power of your endorsement to see the kind of changes you want in government. Thank you.