Political slogans date back centuries, and they have long moved American voters and defined elections. In 1840, William Henry ...

One Clinton slogan, however, did catch on, and penetrated quickly into popular parlance. “I’m in to win,” she said when she announced her campaign in late January.

"When it's win or go home, everything takes on greater importance," the Cavaliers wrote in an e-mail announcing the slogan. "Everything is on the line. Every single thing matters -- everything.

Nike's iconic "Just Do It" slogan was inspired by the final words of a notorious killer in 1970s Utah. Facing down a firing squad in his last moments, double-murderer Gary Gilmore said: "Let's do it." ...