One of the Senate's most outspoken advocates of tighter gun restrictions said he plans to introduce language banning the type of supplemented gun clips that the shooter in Arizona used on Saturday.
Sen. Frank Lautenberg (D-N.J.) promised to bring back legislation that had expired in 2004 that would prohibit the use of magazines of 10 rounds or more, according to The Associated Press.
"The only reason to have 33 bullets loaded in a handgun is to kill a lot of people very quickly. These high-capacity clips simply should not be on the market," Lautenberg said in a statement.
Lautenberg plans to file the bill later this month, after Congress reconvenes.
Law enforcement officials say that the suspect used a gun with a clip that held 33 rounds, according to the AP.
Similarly, Rep. Carolyn McCarthy (D-N.Y.) announced plans for a bill that would increase gun restrictions.