Was Barack Obama's "Lipstick on a Pig" Comment an Offensive Attack on Sarah Palin?

Describing John McCain's policies yesterday, Sen. Barack Obama said that they would be no change from George W. Bush's. "You can put lipstick on a pig," he told a laughing and cheering crowd. "It's still a pig. You can wrap an old fish in a piece of paper called change. It's still going to stink after eight years." Many observers thought Obama was taking a dig at Alaska Gov. Sarah Palin, the GOP vice presidential nominee, who in her Republican convention speech last week said that the difference between a hockey mom and a pit bull was lipstick. The McCain campaign and its allies pounced on Obama's remark, calling it offensive, disgusting, and a personal attack on Palin. The Obama campaign and its defenders argued that the GOP was reacting disingenuously to a common colloquialism. Was Obama's comment offensive , or is the GOP overreacting? Post your thoughts below.

Previously: Should the U.S. drinking age stay at 21?