Bernie is fine. He's still got 46 states to go and it's basically a tie right now anyway. He's also still gaining in the polls and is no where near topped out in support. A lot of election left, but some of his supporters don't act like it.

I'd also say he's not the underdog until I see national polls showing him behind. The past 4-5 have had him leading so I believe he's still in command regardless of SC of the AA vote (which in my opinion will mainly matter in the south). The Rust Belt and the Wheat Belt will fit Sanders much better anyway so everything is fine.

But he's comfortable in that role