> The legislation Democrats in Congress are most hopeful they can pass are mandatory background checks.
This would require gun sellers to verify a purchaser does not have a criminal history or violent mental health problems.
But such a rule probably would not have prevented the Uvalde school shooting.
"The gunman had just turned 18. He had gone and legally bought two rifles. Unless he had a criminal record or violent background, a background check would have done nothing," Smith said.
"The gunman in Buffalo had passed a background check."