A Long Primary is Good for the Eventual Nominee

As long as the Kremlin does not know who the eventual Democratic nominee will be, they have less time to work on their Big Lies. Big Lies take time to develop. They cannot be launched overnight. The public has to absorb them bit by bit so that they finally develop the ring of truth simply because they have become familiar.

With so many candidates battling it out, Russia will also have to be careful about character smears in the primary---because there are candidates that it believes have less chance of winning the general than others. Right now, Joe Biden is serving a valuable role--he is the lightening rod for all of Russia's smears. Trump is in full "Anyone but Biden!" mode. That allows the other candidates to get by relatively unscathed.

Keep the opposition guessing. Give the Democratic candidates plenty of time to craft their own public images. Pick an eventual nominee known for wit and savvy rather than one known for "purity"--so the inevitable Kompromat will not matter, because the public will be rolling in the aisles at the sassy comeback its nominee will deliver. Joe Biden would actually be good at this. So would several other candidates.