who said it's the economy stupid

The phrase "It's the economy, stupid" was coined by James Carville in 1992. Carville was a strategist in Bill Clinton's successful presidential campaign against incumbent George H. W. Bush. He created the phrase as an internal message for the campaign workers to keep their focus on the economy as the key issue influencing voters. The original wording was "The economy, stupid," and it was displayed on a sign in Clinton’s Little Rock campaign headquarters. Over time, the phrase became a widely quoted political catchphrase emphasizing that economic issues are often the primary concern for voters.