Sorry, if you're serious about running for a Senate seat, you don't "sit back" and worry about who's endorsing who and who's running. YOU FRICKING RUN, and disregard all the mumbo-jumbo about Harris and concentrate ON YOUR CANDIDACY.
She beat 3 no-names in the primaries, and not by a hell of alot overall.
This isn't horseshoes or hand grenades. A victory is a victory is a victory.
A victory over 3 nobodies doesn't equal a victory against an established sitting senator, though, whith Katherine will find out in a few weeks.