New Jersey Gov. Chris Christie on Tuesday blasted Hillary Clinton for “launching” diplomatic negotiations with the Iranian regime over their nuclear program, in a blistering speech at the Republican National Convention in Cleveland.

After delivering a 60-second opener full of praise of Donald Trump, Christie moved to prosecute a case against Clinton’s “dismal record” as secretary of state.

“Since the Justice Department refuses to render a verdict, I’m going to present the facts against Hillary Rodham Clinton,” Christie said, prompting the crowd to chant “Lock her up.”

Listing off the countries that are currently undergoing unrest as a result of her record as America’s top diplomat, Christie said Clinton’s effort to get the Iranians to the negotiation table led to the Iran nuclear deal, the “worst nuclear deal in history.”

“In Iran, she led the negotiations that brought about the worst nuclear deal in history,” the New Jersey Governor charged. “Let me be clear: America and the world are measurably less safe and less respected because of the Iran deal Hillary helped cut. Period.

“After she launched those negotiations, she became the biggest cheerleader for it at the end. A deal that will lead to a nuclear Iran, and an Israel that will be less safe and secure and much more dangerous Middle East,” Christie added.

“Is she guilty or not guilty,” Christie repeatedly asked. “Guilty!” the crowd replied.