I can tell you from personal experience that those of us in the Run Tulsi Run group are not part of her political organization. You can join the group and interact with any of the 30K+ members, and you will find a very similar story as mine:

1) We wanted a candidate with integrity.
2) We were tired of politics as usual.
3) Instead of complaining of how parties will never change, we learned from Sanders campaign, and we all decided that it was time to recruit the best among us.
4) Tulsi has everything we want in a candidate: Integrity, foresight, cross party appeal,  compassion, courage, and a very strong message.
5) The group simply is working well in advanced to set a network of volunteers that will throw their weight to support Tulsi in 2018 and 2020.

You can already see with the DNC leak how Tulsi is in the crosshairs of the DNC because she "betrayed" the party by endorsing Sanders. She didn't she simply didn't betray her beliefs. And that's why we want her to be POTUS.