A conservative legal aid group is going after the NFL over a mandate for hiring new coaches that it dubs a “cynical assault on equality” that violates federal anti-discrimination laws by targeting whites. On Tuesday, America First Legal, or AFL, which was launched by former aides to former President Donald Trump, sent a letter to the federal Equal Employment Opportunity Commission demanding an investigation into the NFL over the Rooney Rule, which it argues violates the 1964 Civil Rights Act. As recounted by AFL, the Rooney Rule, adopted by the NFL in 2003, was designed to “increase the number…