Marco Rubio told ABC News’s George Stephanopoulos that the United States is at a “generational moment”—a further sign the 43-year-old Republican senator will make his youth a focus of his presidential campaign against older candidates in both the primary and general election.

Rubio, who will give a speech Monday evening in his hometown of Miami to launch his White House bid, did not mention former Florida governor Jeb Bush nor former secretary of state Hillary Clinton in the interview excerpts released by ABC News. But Rubio’s implict message was that Bush and Clinton, both Baby Boomers and both related to former presidents, represent a past generation.