Donald Trump roiled disgraced former Rep. Anthony Weiner and cast his estranged wife Huma Abedin, a top aide to Hillary Clinton, as "a problem" during a lengthy Saturday rant at a Golden, Colorado, rally where he dug in on the latest bombshell FBI revelation.

Trump ripped Weiner as "a major, major, major sleaze," and bragged about calling "him correctly" in past social media posts.

"Perhaps, through this other investigation, and that's the investigation of a person that over the years I've known a little bit and watched," the Republican nominee said. "Did I call him correctly? Did anybody see? It's called good judgment. It's called good instincts."

FBI Director James Comey announced on Friday that the agency had discovered new emails related to its probe into Clinton's use of a private server. Reports later indicated the additional emails uncovered were in connection with an investigation into Weiner over allegations he sexted with a 15-year-old girl.

See more on Clinton's email probe:

4 PHOTOS Hillary Clinton addresses FBI email probe See Gallery Hillary Clinton addresses FBI email probe DES MOINES, IA - OCTOBER 28: Democratic presidential nominee former Secretary of State Hillary Clinton speaks to reporters following a campaign rally at Roosevelt High School on October 28, 2016 in Des Moines, Iowa. With less than two weeks to go until election day, Hillary Clinton is campaigning in Iowa. (Photo by Justin Sullivan/Getty Images) U.S. Democratic presidential nominee Hillary Clinton holds an unscheduled news conference to talk about FBI inquiries into her emails after a campaign rally in Des Moines, Iowa, U.S. October 28, 2016. (REUTERS/Brian Snyder) U.S. Democratic presidential nominee Hillary Clinton leaves after an unscheduled news conference on FBI inquiries about her emails after a campaign rally in Des Moines, Iowa, U.S. October 28, 2016. (REUTERS/Brian Snyder) US Democratic presidential nominee Hillary Clinton answers a question during a press conference about the FBI's reopening of a probe into her use of a private email server while secretary of State, in Des Moines, Iowa, on October 28, 2016. The FBI dealt Hillary Clinton's seemingly unstoppable White House campaign a stunning blow Friday by reopening a probe into her use of a private email server while secretary of state. / AFP / JEWEL SAMAD (JEWEL SAMAD/AFP/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

"If you check out the tweets, or if you check out whatever it is I wrote about him, it was so perfect," Trump said. "And that was done a long time ago. But they found, by looking at Anthony Weiner, a major major major sleaze, they found what may be some of the 33,000 missing and deleted emails."

Trump said Clinton has "bad" instincts "when the emails are on Anthony Weiner's — whatever."

The New York businessman also asked whether Clinton would keep Abedin after the latest revelations.

"Is she going to keep Huma?" Trump asked. "Huma's been a problem. Do we agree? Huma. Huma's been a problem. I wonder if Huma's going to stay there."

"And I hope they haven't given Huma immunity," he continued. "Because it seemed like every person who walked down the sidewalk got immunity. I hope they didn't give Huma immunity because she knows the real story. She knows what's going on. She knows what's going on."

Clinton's campaign chair John Podesta assured reporters earlier Saturday that Abedin had done "nothing that calls into question anything."

During the Colorado rally, Trump nevertheless took pride in having previously suggested that Weiner was a security risk, and mocked those who thought he was wrong for doing so.

"How can you have your top person married to this guy?" he asked. "And everyone said, 'Oh one thing has nothing to do with the other.' Well, it does. It turned out, it does. And this is very serious stuff."

For years, Trump has lambasted Weiner. In 2013, when Weiner was seeking the mayor's office in New York City, Trump posted a Vine demanding that "no perverts" should be elected to the office. He later called for Abedin to "dump the sicko Weiner," predicted Weiner would be "back sexting with a vengeance" after the 2013 mayoral race, and mocked Weiner's revealed sexting identity "Carlos Danger."

In August, Trump alleged that Weiner was "a major security risk as a collector of info" due to his marriage to Abedin, after a bombshell story broke that Weiner had allegedly been sexting with an underage girl, sparking the current investigation.

The FBI's announcement on Friday threw a wrench into an already turbulent presidential campaign with just 11 days before Election Day, coming as Clinton held leads Trump, in national polls and surveys in key battleground states.