I forgot. Here is their definition of ratings:
GOA House Ratings
A+ Pro-Gun Leader: introduces pro-gun legislation.
A & A- Pro-Gun Voter: philosophically sound.
B & B- Pro-Gun Compromiser: generally leans our way.
C & C- Leans Our Way: occasionally.
D & D- Leans Anti-Gun: usually against us.
F Anti-Gun Voter: a philosophically committed anti-gunner.
F- Anti-Gun Leader: outspoken anti-gun advocate who carries anti-gun legislation.
NR Not rated: Refused to answer his or her questionnaire; no track record.