California gubernatorial candidate Katie Porter was fact-checked Monday after she accused rival  Tom Steyer  of leaking a damaging video and warned that Xavier Becerra could pose a risk to Democrats in the state’s jungle primary. During an interview on CNN’s “Inside Politics,” Porter told host Dana Bash: “Well, given that Tom Steyer is the person who leaked the video with me and the staffer from five years ago, he pretty clearly wanted to be governor bad enough to knock me down to do it.” Bash closed the interview by saying CNN had not verified Porter’s claim about Steyer. “I should note that we don’t have evidence that Steyer leaked that video of you,” Bash said. “If you have it, please bring it.” Porter alleged Steyer’s campaign was behind the leak of a years-old  video showing her berating a staffer , saying she had been told the footage came from the Department of Energy.…