Joe Biden walks with supporters at a pre-Wing Ding march from Molly McGowan Park in Clear Lake, Iowa, August 9, 2019. (Gage Skidmore)The problem with campaigning on electability is that it’s a brittle rationale for a candidacy compared with organic support from the grassroots.

As of this writing, the Democratic presidential contest looks very fluid, with four candidates bunched up in Iowa and New Hampshire.

Read original