Republican Congressman Steve Knight's leading election opponents argued over how best to achieve Democratic goals on immigration, gun control and stifling the Trump administration during a sometimes scrappy debate Saturday night. It got heated when candidates Bryan Caforio and Katie Hill accused each other of lying in an exchange about whether the Caforio campaign was the source of negative literature about Hill distributed at the state Democratic Party convention, when Hill defended her refusal to join Caforio and Jess Phoenix in signing the "People's Pledge" to keep "dark money" independent expenditures out of the contest and when Hill tried to press her advantage as the longest resident of California's 25th House District.