With jobs and other pocketbook issues the top concerns for most voters, the Mitt Romney campaign has been running ads that warn about rising taxes for the middle class if Barack Obama is re-elected. In a television ad called "Putting jobs first", a video clip shows Mitt Romney speaking during the Denver debate. Romney says "I’m not going to raise taxes on anyone." As he says that, these words appear on the screen: "Under President Obama: $4,000 tax hike on middle class families." The ad doesn’t say when this tax hike will ...