SAN FRANCISCO (Standard&Poor's) May 17, 2012--Standard&Poor's Ratings Services assigned its 'AA' rating to Wisconsin's $212.8 million general obligation (GO) bonds 2012 series A. In addition, we affirmed our 'AA' rating on the state's approximately $7.4 billion in existing GO debt. We also affirmed our 'AA-' rating on the state's $3.4 billion in existing appropriation bonds and master lease certificates of participation, as well as our 'A' rating on the state's moral obligation-backed debt. The outlook on all ratings is stable. "If state economic growth were to stall or there were fiscal policy missteps for any reason, downward pressure on the rating could result," said Standard&Poor's credit analyst Gabriel Petek. "On the other hand, the