Yes, they should. It took me less than 3 minutes to find and post these links for you.
- This news follows closely on the heels of the NRA donating money (almost $5,000) to establishment left-wing politicians like Harry Reid (D-NV), while remaining completely silent on Senator Reid’s opponent, 100% pro-gun challenger Sharon Angle (R). Though the NRA claims they have not endorsed Harry Reid, their donation, as well as their magazine's full-page photo layout of NRA Executive Vice President Wayne LaPierre with Reid, leave little doubt as to their intentions.
How about this from Field and Stream - They justified it as Harry being the least unfriendly to gun owners given the fact that if Harry loses, Chuck Schumer will take his place, an avid, anti-gun advocate.