It appears the target group are people in the Seattle metro area that covers Tacoma, WA north to the county right south of the Canadian border.
I live in the county that abuts King County to the east and is MAGA red, tho I have seen fewer campaign signs this election cycle. They are smart enough to know how stupid they look openly supporting tfg. That's just a guess, I do know their overall happy index is low. When talk radio and FOX took off in the late 1990s those media outlets were a huge hit over here and the rapidly growing real estate market was booming and the county commissioners were more than happy to listen to the developers and money people buying up rural land and senior water rights. Everyone was happy til the recession hit and then Obama gets elected - YIKES - these folks near lost their minds! But trump came along and they were happy! When he "won" the mood change was palpable. HOO BOY! are they not happy now, again a palpable sense when bunches of people are out and about, like at the Farmers Market. People are on edge around here, they believe the gloom and doom the GOP pushes will happen if the Democrats keep the WH.