Following the Stoneman Douglas High School shooting in February 2018, Trump met with students and others at the White House for a "listening session." Trump suggested arming up to 20% of the teachers to stop "maniacs" from attacking students. The following day Trump called a "gun free" school a "magnet" for criminals and tweeted, "Highly trained, gun adept, teachers/coaches would solve the problem instantly, before police arrive. GREAT DETERRENT!" In August 2019, following mass shootings in El Paso, Texas and Dayton, Ohio, Trump declined to support universal background checks, saying that existing background checks are already "very, very strong," even though "we have sort of missing areas and areas that don’t complete the whole circle.” He also indicated that he was not interested in working on bipartisan compromises. According to "The New York Times", many of Trump's statements on legal topics are "extemporaneous and resist conventional legal analysis," with some appearing "to betray ignorance of fundamental legal concepts." Trump has stated that he wants to replace Antonin Scalia on the U.S. Supreme Court with "a person of similar views and principles". He has released a list of eleven potential picks to replace Scalia. The jurists are widely considered to be conservative. All are white, and eight of the eleven are men. The list includes five out of the eight individuals recommended by the Heritage Foundation, a conservative think tank. Trump had previously insisted that he would seek guidance from conservative groups such as the Federalist Society and the Heritage Foundation when it came to picking Supreme Court candidates. Several of the judges listed by Trump have questioned abortion rights. Six of the eleven judges have clerked for conservative Supreme Court justices. Trump has claimed that he "would probably appoint" justices to the Supreme Court who "would look very seriously" at the Hillary Clinton email controversy "because it's a criminal activity." However, under the U.S. Constitution, Supreme Court justices "are neither investigators nor prosecutors." Trump has criticized Chief Justice of the United States John Roberts, a George W. Bush appointee, as a "nightmare for conservatives," citing Roberts' vote in the 2015 decision in "King v. Burwell", which upheld provisions of the Affordable Care Act. He has also blamed Roberts for the June 2015 Supreme Court ruling legalizing same-sex marriage, apparently in error, since in that case Roberts actually dissented from the majority opinion. In February 2016, Trump called on the Senate to stop Obama from filling the vacant seat on the Supreme Court.