The Nashville, Tennessee, school shooting has reignited the debate about whether new federal laws could curb gun violence, but lawmakers serving in a divided Congress appear to be pessimistic about passing additional gun legislation.

Earlier this week, President Joe Biden acknowledged he’s done all he can do through executive action on gun control and pleaded with Congress to act after the mass shooting at a Nashville private school that killed three children and three adults on Monday. He also renewed his push for lawmakers to reinstate a nationwide ban on assault-style weapons and high-capacity magazines that expired in 2004.