By Andrew Holleran The National Football League is coming off one of its best-rated seasons of all-time, including a monstrous postseason in the television ratings department, but a new poll claims that Republicans are losing interest in the poll. The poll, conducted by Los Angeles Times/SurveyMonkey, shows that Republicans are losing interest in the National Football League. From the poll: The group who say they are now lesser fans is disproportionately Republican, the poll found. Nearly half of those who identified themselves as Republicans or independents who lean to the GOP said their inte…