Concord, New Hampshire (CNN) Last go-round, New Hampshire was everything to Bernie Sanders, his one sure thing as he battled Hillary Clinton for the Democratic nomination.

He routinely packed venues with Bernie-or-bust supporters, who saw him as the antidote to the kind of political incrementalism that they thought Clinton embodied. He was 2016's "it-boy," the grumpy grandpa who was loved by millennials and aging hippies, overwhelmingly white progressives.

But 2020 is looking a lot different for Sanders. While he can still raise gobs of money, he has much more company. Which leaves a question -- who is Sanders without Clinton?

Polls (yep, it's early, we know) show Sanders losing support, as others such as Joe Biden, Elizabeth Warren and Kamala Harris gain ground. A Monmouth University national poll released last week shows Sanders with the support of 15% of Democratic-leaning voters, a decline of 25% from March. A Monmouth poll of New Hampshire shows Biden with a 20-point lead over Sanders, roughly the same margin he beat Clinton by in the state in 2016.

In conversations recently with about a dozen voters who showed up at his events during his longest New Hampshire swing, it's clear that the kind of ride-or-die support Sanders had in 2016 has dissipated a bit.

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