MSNBC is insisting O'Rourke has to differentiate himself from the others on some issue or other

And that's bullshit.

All the people seeking the nomination could embrace the same agenda, and then Democratic voters would decide who they want to try to beat Trump, take over the White House, and advance the ball, judging by personal factors that, yes, might include age, race, sex, and sexual orientation.

Anyway, the convention is 16 months away.