Express frustration towards the government's inability to enforce existing laws and regulations, and criticize lawmakers for focusing on passing new legislation instead of enforcing existing ones. Also, reference the Las Vegas shooting and express anger at the government's failure to prevent it. Finally, express frustration with the two-party political system.
How is passing more pointless legislation and more stupid laws going to help if the existing ones were not applied by our useless government! Just like in the Las Vegas shooting, the perpetrator bought an excessively amount of guns in a very short period of time and the useless background check guy that is supposed to be monitoring this was asleep at the wheel. Great job useless American government, just great! 
HOW IS YOUR TWO PARTY DICTATORSHIP WORKING FOR YOU NOW AMERICA!