President Biden on Thursday called gun violence in the United States an “international embarrassment” as he outlined several executive actions, including an attempt to rein in “ghost guns,” devices without serial numbers that are sold in kits and assembled at home.

The announcements in the White House Rose Garden marked Biden’s first major presidential actions on guns. He pushed back on arguments that he is threatening the Second Amendment and lamented a mass shooting Wednesday in South Carolina that left at least five people dead, including two children.

Here’s what to know:

  • An associate of Rep. Matt Gaetz (R-Fla.) is in plea negotiations to resolve the sex trafficking allegations against him, a potentially ominous sign for Gaetz if Joel Greenberg cooperates with prosecutors in a bid for leniency.
  • Sen. Joe Manchin III (D-W.Va.) said that under no circumstances would he vote to eliminate or weaken the legislative filibuster in his most definitive statement on the topic.
  • Rep. Lee Zeldin (R-N.Y.) became the first Republican to formally announce a New York gubernatorial bid, taking aim at embattled Gov. Andrew M. Cuomo (D).
  • House Speaker Nancy Pelosi (D-Calif.) is heading into one of the most challenging stretches of her career as her party attempts to enact what Biden is touting as a transformative agenda.