Heather Haddon, reporter for The Wall Street Journal, shares her thoughts on Kroger becoming the third retailer to raise the age for buying a firearm to 21. Walmart and Dick's Sporting Goods made similar changes recently.

Haddon notes this decision wasn't made in response to Kroger shareholders who asked for similar measures to be taken back in 2016. In reality, she says this will only affect a small number Kroger-owned Fred Meyer locations. There are 43 Fred Meyer stores nationwide.

Haddon says if the NRA is upset with any of these retailers it's probably Walmart because they are the largest retailer in America. Kroger is the largest supermarket chain in the country.