Baby Boomers - the protest-loving generation that didn't trust anyone over 30 - are approaching retirement by the millions, an evolution that many say could be the last best hope for a hopelessly gridlocked Washington. Replacing the Boomers are the Millennials, a get-it-done group born roughly between the early 1980s and 2000s, who make up the largest and most diverse generation in history. It's a generation that proudly rises above party loyalty and is driving the surge in the number of decline-to-state voters, who now make up 1 in 5 Californians, experts say. They are less divided, and they have a much greater unity of belief" on social issues such as same-sex marriage, which 70 percent of them support, said author Morley Winograd, a former White House policy adviser under President Bill Clinton and a demographics expert. Their political mind-set ... is: "We want to change the world - what can we do together?" The legacy they are beginning to inherit, and fundamentally change, is a political culture that is rabidly partisan and all but frozen in animosity. The politics of an unpopular Congress suggest that lasting solutions will come not from the once-influential Boomers, but instead from their kids. "American politics will never be the same - because it is the end of the Boomer-dominated era," said Winograd. Winograd, co-author of a new book with Michael Hais called Millennial Majority: How a New Coalition Is Remaking American Politics, said, "The new Millennial-driven majority coalition in the United States will change almost everything."