Colorado State Senator Greg Brophy speaks about his concern that new gun laws would hurt the local economy, during a debate period on a day of voting on gun control bills before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Protesters gather in front of the Capitol in Denver where State Senators are debating seven control bills on Friday, March 8, 2013. Colorado Democrats are on the cusp of passing gun control proposals in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Ed Andrieski)
Colorado Sen. Lois Tochtrop, left, listens as Sen. Kevin Lundberg, right, speaks at the podium during a debate period on a day of voting on gun control bills before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Protesters gather in front of the Capitol in Denver where State Senators are debating seven control bills on Friday, March 8, 2013. Colorado Democrats are on the cusp of passing gun control proposals in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Ed Andrieski)
Colorado Senate Democratic Leader Morgan Carroll, whose district includes the Denver suburb Aurora, speaks at the podium during a debate period on a gun control control bill before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Colorado State Senator Steve King speaks at the podium during a debate period on gun control bills before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Senate Democrats advanced an expansion of background checks on firearm purchases as part of a package of bills responding to the shootings in Aurora and Connecticut. The proposal would require background checks where they currently dont exist, such as purchases online and private sales and transfers. The bill got initial approval in the Senate on an unrecorded vote on Friday. (AP Photo/Brennan Linsley)
Colorado State Senator Steve King speaks at the podium during a debate period on a day of voting on gun control bills before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Colorado State Senator Steve King speaks at the podium during a debate period on a day of voting on gun control bills before the Colorado Legislature, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Colorado Senator Owen Hill, second from right, sits with his wife Emily and their children, who came to visit him inside the senate chamber at the State Capitol, in Denver, Friday March 8, 2013. Colorado Senate Democrats advanced an expansion of background checks on firearm purchases as part of a package of bills responding to the shootings in Aurora and Connecticut. The proposal would require background checks where they currently dont exist, such as purchases online and private sales and transfers. The bill got initial approval in the Senate on an unrecorded vote on Friday. (AP Photo/Brennan Linsley)
Colorado Senator Owen Hill, second from right, sits with his wife Emily and their children, who came to visit him inside the senate chamber at the State Capitol, in Denver, Friday March 8, 2013. Colorado Senate Democrats advanced an expansion of background checks on firearm purchases as part of a package of bills responding to the shootings in Aurora and Connecticut. The proposal would require background checks where they currently dont exist, such as purchases online and private sales and transfers. The bill got initial approval in the Senate on an unrecorded vote on Friday. (AP Photo/Brennan Linsley)
Colorado Senate President John Morse, right, speaks with fellow senator Angela Giron, left, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Senate Democrats advanced an expansion of background checks on firearm purchases as part of a package of bills responding to the shootings in Aurora and Connecticut. The proposal would require background checks where they currently dont exist, such as purchases online and private sales and transfers. The bill got initial approval in the Senate on an unrecorded vote on Friday. (AP Photo/Brennan Linsley)
Colorado Senator Owen Hill, right, passes around a bowl of snacks to his fellow senators, including Senator Ellen Roberts, inside the senate chamber on a day in which debate and voting on several gun control bills promised to continue into the night, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
Colorado Senator Owen Hill, right, passes around a bowl of snacks to his fellow senators, including Senator Ellen Roberts, inside the senate chamber on a day in which debate and voting on several gun control bills promised to continue into the night, at the State Capitol, in Denver, Friday March 8, 2013. Colorado Democrats are on the cusp of advancing gun-control proposals Friday in a state balancing a history of heartbreaking shootings with a Western heritage where gun ownership is treasured by many. (AP Photo/Brennan Linsley)
DENVER — Colorado Democrats advanced aggressive gun-control proposals after a 12-hour marathon debate Friday in a state wrestling with its history of heartbreaking shootings and Western heritage where gun ownership is treasured by many. Democrats moved forward with new ammunition magazine limits and universal background …