United Airlines, Boeing, and other companies regulated by the Department of Transportation paid to create a reality TV show about DOT Secretary Sean Duffy’s family. Transportation Secretary Sean Duffy, his wife Fox News host Rachel Campos-Duffy, and kids star in a new reality series The Great American Road Trip which will be released to YouTube next month, following them on a journey tied to America’s 250th birthday. It’s produced by the company behind MTV’s The Real World . Sean Duffy was on “The Real World: Boston” and Rachel Campos-Duffy was on “The Real World: San Francisco.” They met filming “Road Rules: All Stars.” The show was filmed “over the course of seven months,” while he was serving in the Trump cabinet, following Duffy’s family beginning with the Oval Office first with President Trump giving the family a send-off. They go Montana snowmobiling, take a Mississippi River cruise in St.…