As his party prepares to kick off its own nominating convention in Charlotte, President Obama is sticking to a message he's been using that casts the ideas embraced at the GOP convention as outdated: 

The Post's David Nakamura took a closer look at the strategy on Sunday:

“They were going so far backwards you might as well have watched it on black-and-white TV,” Obama said at campaign rally here Sunday before 13,000 at the University of Colorado. A day earlier, in Sioux City, Iowa, he had added: “Put some rabbit ears on the convention hall.”

The quips build on the Obama team’s relentless push to pin Romney to the past. For instance, Obama aides have mocked Romney’s use of the word “marvelous” to describe the House GOP budget offered by Romney’s running mate, Rep. Paul Ryan (Wis.). And they have tied his policies to those of former President George W. Bush.