David Martin’s June 8 guest opinion article, “Transportation funding is neither Democrat nor Republican — it’s American,” which supports 2004’s Proposition 400 imposition of a 20-year, half-cent sales tax in Maricopa County to fund regional transit projects, is misguided.

The Phoenix area is facing the biggest drop in bus ridership in a decade due to service cutbacks, increased ridership on alternatives such as light rail and a lack of money for marketing services to attract new customers, according to public transportation officials across the Valley.