Trump's remark at the Conservative Political Action Conference (CPAC) prompted a chant of "Lock her up" from attendees at the event in National Harbor, Md., just outside Washington.
The president lamented that he couldn't joke without upsetting the media while facetiously reiterating his past comments inviting Russia to find Clinton's deleted emails.
“I’ve learned, because with the fake news, if you tell a joke, if you’re sarcastic, if you’re having fun with the audience,” he said, “If you say something like ‘Russia, please if you can, get us Hillary Clinton’s emails, please, Russia, please, please get us the emails.”
The crowd cheered enthusiastically and chanted "lock her up."
Trump was referencing a press conference in July 2016 when he addressed Russia directly, stating, "Russia, if you are listening, I hope you are able to find the 30,000 emails that are missing. I think you will probably be rewarded mightily by the press."