U.S. Congressman Mike Coffman is running in one of the most competitive districts in the country this year. His district shifted several years ago from a district that favored Republican candidates two-to-one, and since then, he’s worked harder than anybody else to represent his constituents, some of whom are recent immigrants, some of whom don’t speak English. That’s why his new ad is so on target. It features a diverse array of constituents praising Coffman’s commitment to them. Take a look:

Sources describe the ad buy as a “significant buy on cable, digital, and targeted broadcast.” So far, Coffman and the National Republican Campaign Committee have reserved nearly $5 million in ads for the campaign season.