Second Amendment activist Dick Heller, who won a gun rights case at the U.S. Supreme Court in 2008, criticized what he called biased media coverage of gun issues during an appearance at the National Press Club on Wednesday.

“One of the problems is that many in government and media don’t know much about using guns for self-defense, and many aren’t particularly keen to learn,” Heller said. “It is easier to be spoon-fed quotes and false science by anti-gun lobbyists and politicians than to be a real fact-checker,” Heller said.