WASHINGTON—In a landmark decision that overturned decades of legal precedent, the U.S. Supreme Court ruled 5-4 Tuesday to remove all restrictions that had previously barred corporations from holding public office. "This is an unfair, ill-advised, and tragic mistake," Sen. John McCain (R-AZ) said before boarding a flight to Arizona in response to primary poll numbers that show him trailing the Phoenix-based company PetSmart by a double-digit margin. "Despite the deep discounts and exciting promotions that they may be able to offer, these huge, soulless entities are not capable of truly serving the American people's—or their pet's—needs." Corporate attack ads have already begun to hit the airwaves in New York, where a new Pepsi commercial set to a catchy modern remix of Bob Dylan's "The Times They Are A-Changin'" blasts incumbent governor David Paterson as "unrefreshing" and urges New Yorkers to "taste the choice of a new generation this Nov. 2."