Trump's Republican administration alleges the ban violates the Constitution's Second Amendment right to bear arms.
The Illinois ban on assault weapons and large-capacity magazines will remain in place, at least for now.
An investigation by the Manhattan district attorney found that YouTube's algorithm is promoting ghost gun content to those most at risk of making the weapons, including children and youth gamers.
The Supreme Court is hearing arguments Wednesday challenging the Donald Trump-era regulation that treats bump stocks as machine guns and bans Americans from owning them.
The robberies happened within 30 minutes of each other, and were four blocks apart on Tuesday night.
Rep. Jared Golden, a Marine Corps veteran who lives in Lewiston, Maine, said Thursday that in light of the recent mass shooting in his hometown he was changing his view on banning assault-style weapons.