Former Colorado Lieutenant Governor Jane Norton recently took issue with Republican U.S. Senate primary opponent Ken Buck’s advertising strategy. Norton quipped that if Buck is going to use advertising to criticize her, he should be “man enough” to run the ads himself—as opposed to depending on a 527 or other third-party group.

Now, cowboy-boot-wearin’ Buck says voters should choose him over Norton “because I do not wear high heels.” Buck explains, “She has questioned my manhood; I think it’s fair to respond.” Check out the video.