Before jumping on her bandwagon, look as her On The Issues:
https://www.ontheissues.org/Tulsi_Gabbard.htm
She is not for the 2A, wants rifle bans, etc. No way do I trust her.
She's really the canary in the coal mine for the radicalization of the Dems. She's female, a war vet, attractive, well-spoken, and liberal on most social/economic issues. She should be the perfect candidate for them. But she's polling at only 1-2%.
She's unacceptable to that party because of their obsession with intersectionality -- the idea that every minority interest group/subgroup must support the agenda of every other subgroup, even if their agenda seems completely unrelated. So because she's against illegal immigration, she is out. Dissent on even one of those issues is a disqualifier.
The Democrat Party is controlled lock, stock, and barrel by the hard left.