...Will national Democrats seriously contest the race? ...
Yes!
Release the purse strings.
Relieve the members of Hollyweird and members of the Film Actors Guild of their wealth.
Spend, spend spend, to support the progressive candidate
Hire Jon Ossoff to run the campaign. He needs a job so he can earn enough money to marry his shack-up girlfriend.
It’s like the GOP spending tons of money on a Vermont Senate race.