If you want some further talking points to pad your statements:

What you have openly stated is that you are making your decisions based on emotion rather than real data -- which is never good idea when defining public policy that will have a tangible affect on millions of people. Its the entire reason why we are supposed to have open, honest, intellectual debate about issues of national importance rather than ramshackle changes that are thrown together at the whims of emotion.

It has been the law in Colorado for many many years that you must go through a background check to purchase any firearm at a gun show. There is no 'gun show loophole' it is a boogey-man used to scare people who refuse to/are to lazy to check the facts themselves. All of the people this morning stated they were for background checks - we ALREADY perform these checks.