In the New York Time’s (August 12) article titled, “It’s the loyalty, stupid,” Maureen Dowds comments on Hillary Clinton’s calling President Obama a wimp just as he was preparing to order airstrikes against ISIS. She wrote:
“She said that Obama’s “failure” in Syria led to the rise of ISIS and sniped about Obama’s slogan: “Great nations need organizing principles, and ‘Don’t do stupid stuff’ is not an organizing principle.”
Saying you can’t live by slogans is rich, coming from someone whose husband’s presidency was built on “It’s the economy, stupid.”
What does "stupid" of “It’s the X (loyalty, economy, whatever), stupid.” specifically mean? Does it mean "obvious / without question"? Can I replace ‘stupid’ with ‘period’?
What are spelt out forms of these lines?