The bill is expected to pass the House and be signed into law by President Joe Biden.
Lawmakers say that expanding the High Court is the only way to combat the far right’s court packing.
In his dissent, Justice Stephen Breyer said the Court “burdens States’ efforts” to adequately address gun violence.
Bush praised a provision in the Senate’s recently passed gun bill that would close the “boyfriend loophole.”
The Supreme Court’s legal doctrine on gun rights makes it complicit in the U.S.’s crisis of gun violence.
Creating avenues for criminalization targets marginalized people without reducing gun violence, safety advocates say.
Hundreds of thousands took to the streets in over 450 protests across the country Saturday led by March for Our Lives.
BlackRock and Vanguard own 26% of gunmaker Ruger, whose directors are tied to harmful industries and causes.
Medical professionals say many patients cannot be saved when their injuries are caused by military-style rifles.
Critics have rejected the idea that the shooting could have been averted or mitigated with a larger police department.