this is actually a good demonstration of the differences.

the sympathetic liberal writer at the atlantic is presenting the situation as ridiculous.

bernie is trying to figure out the best way to win, the best way to advance the cause.

"but, what's in it for me?", asks the confounded senator for massachusetts.

exactly.

https://www.theatlantic.com/politics/archive/2018/10/bernie-sanders-running-against-warren-president/573529/