Some Republicans say gun control should be debated

Sen. Charles Grassley said HCHA's spending was a potential "violation of the public trust."

Protesters marching with the social activist group CREDO along with other concerned citizens descend on the offices of the NRA's (National Rifle Association)Capitol Hill lobbiest's office demanding the pro-gun lobby stand down in reaction to the shooting at Sandy Hook Elementary School December 17, 2012, in Washington, DC. A leading Democratic senator launched a bid Sunday to ban assault weapons in the wake of the latest deadly US school shooting, announcing that she will put a bill before Congress on January 3.Dianne Feinstein, the influential chair of the Senate Intelligence Committee, said she believed President Barack Obama would support her legislation, also aimed at outlawing magazines carrying more than 10 bullets. AFP Photo/Paul J. RichardsPAUL J. RICHARDS/AFP/Getty Images

Rep. Pete Sessions, R-Texas, talks at a news conference, Friday, Jan. 16, 2004, at his home in Dallas, Texas. (Donna McWilliam / Associated Press)

Gun control supporters take part in a candlelight vigil at Lafayette Square across from the White House on December 15, 2012 in Washington. Twenty-seven people, including the shooter, were killed on December 14 at Sandy Hook Elementary School in Newtown, Connecticut. AFP PHOTO/Mandel NGANMANDEL NGAN/AFP/Getty Images

New York City Mayor Michael Bloomberg, right, joined by family and friends of those injured and killed in the shootings in Tucson, Ariz., at Virginia Tech and Columbine High School in Colorado, speaks about gun control during a news conference at City Hall in New York, Monday, Jan. 24, 2011. (AP Photo/Seth Wenig)