Congressional battle lines hardened Sunday over firearms restrictions, laying the foundation for what will likely be a fight over any proposed new gun laws.

Speaking Sunday on NBC’s “Meet the Press,” Sen. Lindsey Graham (R., S.C.) said he owned an AR-15, an assault-style rifle, at his home and suggested that the solution isn’t to take his firearm away but to provide better school security and focus more on mental health as a way to cut gun violence. “I don’t suggest you take my right to buy an AR-15 away from me, because I don’t think that it will work,” he said.