Add lack of originality to the flaws critics are leveling against presidential hopeful Mitt Romney.

"Friday Night Lights" creator Peter Berg wrote a letter accusing Romney of having "plagiarized" a popular catchphrase from the show and asking the Republican nominee to "please come up with your own campaign slogan."

"Clear eyes, full hearts, can't lose" was frequently quoted on the show by character Coach Eric Taylor.

Berg wrote, in a letter obtained by the Hollywood Reporter, "I was not thrilled when I saw that you have plagiarized this expression to support your campaign by using it on posters, your Facebook page and as part of your stump speeches."

He went on to say, "Your politics and campaign are clearly not aligned with the themes we portrayed in our series. The only relevant comparison that I see between your campaign and 'Friday Night Lights' is in the character of Buddy Garrity -- who turned his back on American car manufacturers selling imported cars from Japan."

While Berg admitted to being flattered that Romney's campaign team is a fan of the show, he argued that "use of the expression falsely and inappropriately associates 'Friday Night Lights' with the Romney/Ryan campaign ... we are not in any way affiliated with you or your campaign. Please come up with your own campaign slogan."

Berg cannot legally challenge the use of the slogan, however, because he never trademarked it.