Tulsi Gabbard is one of only two of the Democrats in the field that I find dangerous (the other is billionaire Tom Steyer, who made his fortune in dirty energy and investing in for-profit private prisons and is now trying to buy a presidency) though in the very unlikely event that either got the nomination, I would vote for either of them in a head-to-head against Trump.
Hillary Clinton is not the only one suggesting that Tulsi is 2020’s Russian puppet. Hillary did not mention Tulsi by name. Tulsi is the one who took the bait and identified herself as the one Hillary was referring to.
NBC news had reported some time ago that Tulsi Gabbard might be a Russian Trojan Horse. As reported on NBC News awhile back:
Vanity Fair some time ago also compared Gabbard to Jill Stein, the 2016 Russian Trojan Horse who was with Mike Flynn when Flynn had dinner at the same table with Vladimir Putin (Stein is in the photo at the table with Flynn and Putin).