Whose presidential campaign slogan was "We Can Do Better"?

In 1960 when John F. Kennedy launched his presidential campaign in Ohio, he said, "I'm not satisfied. I think we can do better. I think we can do better in making America strong militarily. I think we can do better in raising our prestige abroad. I think we can do better in having friends, not foes, in Cuba, only 90 miles away. I think we can do better in practicing what we preach about equality before the law without regard to race, creed, or color. I think we can do better in improving and expanding our schools. And I think we can do better in the matter that Franklin Roosevelt touched on here in Columbus 28 years ago - in the matter of monetary policy."

The phrase: "We Can Do Better" subsequently become Kennedy's chief campaign slogan. It worked as a theme and helped Kennedy to win the 1960 presidential election against Richard M. Nixon.