They are both addressing essentially the same issues. She wants to make college more affordable. He wants to make it free.
She wants to build on the ACA. He wants to dump it and start over. Women's rights, racial equality, LBGT rights, higher wages, regulation of Wall Street, immigration etc. etc. All the normal liberal progressive issues. She wants to take the slow and steady route, he wants it all at once.
Not sure Bernie wants to "dump the ACA" and start over, if only because he's aware of the difficulties that would arise from a scorched Earth approach. He does want to put something else together and TRANSITION to it when it's ready.
