Democratic incumbent Sen. Michael Bennet’s first ad of the election cycle touts one of his campaign donors, the New Belgium Brewing Company. Bennet released his first television spot Thursday, which features the senator talking about beer and farmers. “They say one man’s trash is another man’s treasure. Or sometimes, these guys’ treasure,” Bennet says, pointing to a herd of cows. The ad then cuts to Bryan Simpson, who is only introduced as a “brewery worker” in Fort Collins. Simpson praises Bennet for working against a federal regulation of how breweries can sell spent grain, or leftover malt beer makers can...