When did willing to compromise become flipping?

I thought that was just the political process.

The McCain campaign is accusing Obama of changing his position on off-shore drilling simply because he stated that he was willing to compromise in order to achieve his primary energy goals.

"If we've got a plan on the table that I think meets the goals that America has to set and there are some things in there that I don't like then obviously that's something that you know I would consider because that's the nature of how we govern in a democracy."
Sen. Barack Obama