So here's a short thread on why.
The Post reporters suggest that it is -- literally -- twice.
Example #1: "The question is whether Democratic primary voters will punish Warren for actions for which she has apologized."
Example #2: "The more immediate problem Warren faces is within her own party."
What follows are the quotes they got from Democrats.
As with Hillary's emails, the controversy is GOP-driven. And the media is falling for it.