...SAN FRANCISCO (Standard & Poor's) Aug. 28, 2015--Standard & Poor's Ratings Services assigned its '##' long-term rating to Wisconsin's $391 million general obligation (GO) bonds of 2015, series C. We also affirmed our '##' long-term rating and underlying rating (SPUR) on the state's existing GO bonds. In addition, we affirmed our '##-' rating and SPUR on the state's appropriation-backed bonds. We also affirmed our 'A' rating on bonds backed by the state's moral-obligation pledge. Finally, we affirmed our 'A-1+' rating on the state's GO commercial paper (CP) and extended municipal CP programs. The outlook, where applicable, is stable. "The '##' ratings on Wisconsin's GO bonds reflect our view of the state's governmental framework supportive of credit quality, with a constitutional balanced-budget requirement and a statutory provision that gives GO debt service the first claim on state revenue; demonstrated ability to make midyear budget corrections; and moderate to moderately high debt burden,...