Photo Illustration by Luis G. Rendon/The Daily Beast/Betsy JohnsonDemocrats in Oregon have long enjoyed party dominance and an absence of viable opposition. The governor’s mansion especially has been blue for decades, with party outsiders seemingly unable to change its hue no matter the year.But in 2022, former state Sen. Betsy Johnson might force that to change.She’s well-funded, with millions in her coffers and no need to spend money on winning a party nomination. She’s drawing endorsements fr