NASA Administrator Jared Isaacman, Rep. Carlos Gimenez and Rep. Adriano Espaillat, NCAA President Charlie Baker

This week on Face the Nation, America celebrates its 250th birthday. We try to put politics aside and a take look at some of the things that make this nation so unique.Despite record breaking temperatures sweeping across much of the nation, Americans came out over the weekend to honor the country's 250th year of independence.  Fireworks, parades, flyovers, and red, white and blue were all on display. We take a look at one thing that is proving difficult to fix, America’s immigration system.  Two members of Congress who immigrated here, Florida Republican Carlos Gimenez and New York Democrat Adriano Espaillat, will tell us their stories and why immigrants were important in shaping America’s past and why they are still important in fortifying America's future. Plus, the final frontier. As America reboots its quest to lead the world in space exploration, we reflect on our history, and take a look at what's ahead with NASA Administrator Jared Isaacman. And, we take look at the pastimes that have dominated American culture. This country is driven by competition, and winning, and few things unite us as much as love of the game.  We talk about the changes in college sports, the proving ground for young American athletes, with the head of the NCAA, former Massachusetts governor Charlie Baker.