US Vice-President Kamala Harris has made an impassioned plea for a ban on assault weapons in the wake of two deadly mass shootings in the US.
Harris was attending the funeral of Ruth Whitfield, 86, killed in a supermarket in Buffalo on 14 May.
Harris, listing these and other attacks, said it was time to say "enough is enough" to gun violence.
The 18-year-old gunman in Tuesday's shooting in Uvalde had two AR-15-style semi-automatic rifles, at least one of which he is reported to have bought soon after his birthday.
After he was shot dead, police found as many as 1,657 rounds of ammunition and 60 magazines in his possession.
The Buffalo, New York, shooter, also 18, had previously come into contact with authorities, but no red flags came up when he legally bought his own AR-15-style weapon.
The powerful National Rifle Association (NRA) gun lobby uses its substantial budget to influence members of Congress on gun policy.
