Liberals are seeing Georgia Democrat Jon Ossoff as their "great hope," but a Republican will defeat him in a June runoff race, former House Speaker Newt Gingrich, who once held the Georgia 6th Congressional District himself, predicted Tuesday.

"[Democrats are] very mobilized because they are terrified that Donald Trump means the end of their world," Gingrich told Fox News' "America's Newsroom" program. "You'll see great intensity riots on college campuses, or marches, or protests, or special elections. The left is deeply mobilized and very frightened."

In the race, being held to replace now-Health and Human Services Secretary Tom Price, if a candidate receives more than 50 percent of the vote, he or she is named the winner, but if the winner gets less than 50 percent, he or she must enter a runoff race in June against the second-place finisher.

According to Conservative Review, Republican Karen Handel is leading for second place, but three other Republicans, Dan Moody, Judson Hill, and Bob Gray are close to her in polling.

Gingrich said Tuesday he thinks it's likely Ossoff will get somewhere "between 44 percent and 48 percent. It is unlikely he will get 50 percent, and it's likely we'll beat him in June when we get to the second round."

President Donald Trump early Tuesday morning targeted Ossoff, the clear front-runner in the race, with a pair of tweets warning voters that the Democrat is soft on crime and immigration, while favoring higher taxes.

Gingrich, meanwhile, targeted Ossoff's liberal backers, pointing out that the 30-year-old candidate has raised more than $12 million in contributions, more than "anybody except speakers of the House have ever raised."

If the race heads to a runoff, Gingrich continued, Republicans will band together, Trump will campaign in Georgia for the Republican candidate, and Ossoff "loses, at which point the media will have to once again be disappointed."

The Kansas race to replace CIA Director Mike Pompeo's seat "was the same way," Gingrich said. "We won, and nobody wrote any articles about Kansas anymore."

In Kansas, Republicans held on the vacant House seat, with voters picking State Treasurer Ron Estes to replace Pompeo in the 4th Congressional District seat.

"My hunch is he won't make it," Gingrich said of Ossoff, a managing partner and CEO of Insight TWI, a small business which produces investigations targeting corrupt officials and organized crime for international news organizations.