By Melanie Arter | May 28, 2021 | 10:32am EDT Former ATF Special Agent David Chipman delivers remarks during a press conference February 6, 2013 on Capitol Hill in Washington, DC. (Photo by PAUL J. RICHARDS/AFP via Getty Images) (CNSNews.com) – President Joe Biden’s nominee for ATF Director David Chipman refused Wednesday to define what assault weapons are, saying that would be up to Congress to define. In an exchange with Sen. John Kennedy (R-La.) at a Senate Judiciary Committee nomination hearing, the senator asked Chipman, “You don’t believe in private ownership of handguns, do you?” CHIPMAN: That’s incorrect. I own one myself.