Against Kasich, maybe. Against Trump? LOL no.
Please. Trump would destroy Sanders. Sanders has no debating ability, he repeats the same "millionaires and billionaires" nonsense over and over.
Trump would eat Sanders alive over stuff like saying climate change contributes to terrorism. Even if there's a shred of truth in that, your average voter is going to find that insane. Plus, the offensive stuff Sanders said about white people is on tape and would be played over and over again by the Trump campaign, which would make it impossible for him to hit Trump effectively on his demonizing entire groups of individuals.