Monkeyleg, your quote is from Hubert Humphrey if I'm not mistaken.
Chaim, I believe you are thinking of the other Senator Joe Bob Kerry, the one from Nebraska. He's the SEAL who was awarded the Medal of Honor. The Kerry from Massachusetts was also Navy (not a SEAL), did not get the MOH, and became very anti-war after his return home. Both Kerrys are no friend to gun owners.
So, how many liberals do we have here besides me?
Doctorhumbert
Microbalrog
Roscoe
Who else? Labels aren't really that important, but I think it's safe to say you're a liberal if you support a majority of the following:
Some kind of welfare/social safety net
Environmental protection laws
Progressive taxation, where the wealthy pay more
Occupational health/safety laws
Clean food/drug laws
Consumer protection laws
Government involvement in the market
Gay or "alternative lifestyle" rights
Some form of drug decriminalization, or "harm reduction"