WASHINGTON (AP) Democratic presidential hopeful Elizabeth Warren is calling on Walmart to stop selling guns.
The Massachusetts senator is joining a push by gun control activists following two mass shootings that killed 31 last week.
One of those shootings took place at a Walmart in El Paso, Texas, and 22 people were killed.
Warren says on Twitter that Walmart "is one of the largest gun retailers in the world" and has a responsibility to prioritize public safety.
Walmart last year announced it would cease selling guns and ammunition to anyone under age 21. It also removed assault-style rifles from its website.
A Walmart spokesman says "we are going through a thorough review of our policies" following the shooting.
Warren is campaigning in Iowa this weekend, along with other White House candidates.