NRA supports Harry Reid?

Recently it was reported that the NRA, yes the National Rifle Association, is set to endorse Harry Reid over Sharron Angle in Nevada's U.S. Senate race. I am surprised to say the least that an organization such as the NRA, who claims to be a one issue organization, would support Senator Reid given his 25 percent rating on the issue of gun control and the 2nd amendment. Senator Reid has consistently voted for gun control bills such as the Brady Bill and will continue to do so as long as he is allowed to stay in office. Now I understand that the NRA is not the "National Republican Association" and is beholden to neither party Republican or Democrat but there comes a point where the NRA must ask themselves whats more important, the 2nd amendment or the Politics of Washington.