(NBCNC) - There are signs that the horror in Connecticut has changed the political calculus in Washington about gun control.
A famously pro-gun senator is joining a famously anti-gun mayor of New York to question the right to own assault weapons.
New York Mayor Michael Bloomberg is leading the push to change federal laws, to curb new sales of assault weapons and large capacity clips and to stop sales at gun shows without a background check.
In Connecticut Sunday President Obama vowed action, but offered no specifics.
Hundreds went to the National Rifle Association office in Washington on Monday to demand more gun controls.
West Virginia Senator Joe Manchin, A STAUNCH NRA BACKER, JOINED THE CALL as well.
"I don't know of anybody that goes hunting with an assault rifle," Manchin said as he encouraged responsible gun owners to join the dialogue.
Meanwhile, the rampage in Connecticut has sparked record sales of weapons that buyers fear could soon be banned.