In effect, this is what conservative radio talk-show host Laura Ingraham initiated when she suggested her listeners call a hotline set up to report a toll-free voter protection hotline.  (tip)

… This is what I’m thinking. Tell me if you think I’m crazy. This is what
I’m thinking. I think we all need to call 1 888 DEM VOTE all at the
same time. And, by the way, when you call, when you call the number —
and remember, it’s ‘Dem Vote’ not ‘Dumb Vote’…

CERT provides background on Denial of Service Attacks, "an explicit attempt by attackers to prevent legitimate users of a service from using that service." The proposal Ingraham made on the air falls in the first category of attacks: "attempts to ‘flood’ a network, thereby preventing legitimate network traffic."

If behavior like this isn’t sue-able, it should be. At a minimum, the
FCC should fine the stations and consider this inappropriate use of
public airwaves when license renewal comes ’round again.

Edited to add: Their website lists Seattle AM1300 as KOL-AM (three letters?!?) … but in 1975, KOL-AM changed its call letters to KMPS-AM. There is no KMPS-AM affiliation noted on the KMPS-FM site … and Google brings up nothing. No one local to write to, I guess.