Here's the announcement:

Among the initiatives outlined in Mr. Obama's plan include universal background checks for gun sales, the reinstatement and strengthening of the assault weapons ban, capping ammunition magazines to a 10-round limit, banning armor-piercing ammunition, providing schools with resource officers and school counselors, putting more police officers on the streets, creating serious punishments for gun trafficking, and ensuring that health insurance plans cover mental health benefits.

The president also outlined a series of 23 executive actions he can take without congressional approval, including measures aimed at making federal background check data widely available, accessible, and maximally effective; staying ahead of the curve on the newest gun safety measures; tracing seized guns and ensuring they don't go back into the hands of dangerous gun owners; making sure schools and other institutions are equipped and prepared for the possibility of shooter situations; aggressively prosecuting gun crime; and improving mental health resources and discourse.

Here is a list of the president's 23 executive actions that he's taking without Congress.