Donald Trump declared the FBI's renewed investigation of Hillary Clinton's use of a private email server, coming just 11 days before Election Day, shows newly uncovered emails must reveal "a most egregious criminal offense."

In a brief stump speech in Cedar Rapids, Iowa, Friday night that focused primarily on his "Contract With the American Voter" policies, Trump prefaced his remarks by describing the Democratic presidential nominee's email scandal as "the biggest political scandal since Watergate."

"The FBI would never have re-opened this case at this time unless it were a most egregious criminal offense," he said. "The investigation is the biggest political scandal since Watergate, and it's everybody's hope that justice at last can be delivered."

"I have had plenty of words about the FBI lately, but I give them great credit for having the courage to right this horrible wrong," Trump added. "Justice will prevail… [with] what happened today, the system will become a little less rigged."

Trump also slammed Clinton's response to FBI Director James Comey's letter to congressional lawmakers announcing the discovery of the emails through a separate investigation.

"In a very brief remark tonight, Hillary Clinton tried to politicize this investigation by attacking and falsely accusing the FBI director of only sending the letter to Republicans, another Clinton lie," Trump railed. "As it turned out, the letter was sent to both Republican and Democratic leaders...."