I accept Biden as the nominee. My one hope is that he does campaign on a public option in the general so that the national conversation continues to move leftward on that subject. I'll be very disappointed if the topic disappears like in the latter half of 2016.
Did Hillary campaign on a public option initially? I can't recall many policy positions from that election to be honest. That is one thing I think Biden has done better than Hillary is emphasize the policies and platform more so than just constant comparisons to Trump. The contrast between Buttigieg, Klobuchar, and Biden. vs. Warren and Sanders was great at bringing policy to the forefront.
She first proposed it in 2007, but in the 2016 cycle she waited until the spring of 2016 to campaign on it IIRC?