President Obama , and Romney call for fully enforcing existing gun laws . Obama spokesman attacks Congress for inability to renew an expired assault weapon ban . ` ` I do n't support new gun laws , '' Romney told CNN . Last week 's mass shootings reignite the gun control movement .
President Obama , Mitt Romney call for fully enforcing existing gun laws . Obama spokesman blames Congress for inability to renew an expired assault weapon ban . `` I do n't support new gun laws , '' Romney tells CNN . Last week 's Colorado shootings reignite the gun control debate .