** FILE ** Rep. Rhonda Fields, D-Aurora, center, talks with Rep. Joseph Salazar, left, and House Speaker Mark Ferrandino, right, D-Denver, about her bill on limiting the size of ammunition magazines at the Capitol in Denver on Friday, Feb. 15, 2013. (AP Photo/Ed Andrieski)

Photo by: Ed Andrieski

** FILE ** Rep. Rhonda Fields, D-Aurora, center, talks with Rep. Joseph Salazar, left, and House Speaker Mark Ferrandino, right, D-Denver, about her bill on limiting the size of ammunition magazines at the Capitol in Denver on Friday, Feb. 15, 2013. (AP Photo/Ed Andrieski)