Sen. John Fetterman shared a study that showed that left-wing terrorism had reached a “30-year high,” and criticized Democrats for using rhetoric such as “Hitler” or “fascist.”

In a post on X, Fetterman included a screenshot of an Axios article titled “Study: Left-wing terrorism climbs to 30-year high.”

Fetterman noted that “political violence is always wrong,” and called for everyone to “turn the temperature down.”

“Unchecked extreme rhetoric, like labels as Hitler or fascist, will foment more extreme outcomes,” Fetterman said. “Political violence is always wrong — no exceptions.”

“We must all turn the temperature down,” Fetterman added.

According to Axios, research from the Center for Strategic & International Studies found that during the “first six months of 2025,” far-right violence, which has usually “been more frequent,” had decreased significantly.

The CSIS “compiled and analyzed a data set of 750 domestic attacks and plots” that had occurred between January 1, 1994, and July 4, 2025.

Researchers found that out of the attacks that occurred since 2016, “left-wing extremists” were responsible for more than 40 of those attacks, while right-wing extremists were responsible for 152 attacks “over the same period.”

The data showed that left-wing extremists have carried out 41 attacks since 2016, compared with 152 from the far right over the same period.

Left-wing violence has killed 13 people over the past decade — far fewer than the 112 deaths from right-wing attacks and 82 from jihadists.

But at least five left-wing plots or attacks have already been recorded this year, compared to just one right-wing attack.

The study comes after Turning Point USA founder Charlie Kirk was assassinated recently, while taking part in a question-and-answer event with students at Utah Valley University.

Breitbart News reported that Utah Gov. Spencer Cox revealed that “bullet casings in the rifle” that the alleged Kirk assassin used “were etched” with messages including, “Hey fascist! Catch!”

In the aftermath of Kirk’s assassination, Democrats such as California Gov. Gavin Newsom have continued to attack Trump administration officials, such as White House Deputy Chief of Staff Stephen Miller, as being a “fascist.”

Fetterman’s willingness to speak out against his own party’s rhetoric represents a rare moment of Democratic accountability.

The 30-year high in left-wing terrorism validates conservative warnings about escalating violence from the left.

The dramatic shift in 2025, with five left-wing attacks versus only one right-wing attack, shows a clear trend reversal.

Fetterman’s direct connection between Democratic rhetoric and violence acknowledges what Republicans have been saying for months.

The study’s comprehensive 30-year dataset provides undeniable evidence of the current left-wing violence surge.

Democrats’ continued use of “Hitler” and “fascist” labels despite this data shows their refusal to accept responsibility.

The assassination of Charlie Kirk with bullets etched “Hey fascist! Catch!” directly proves Fetterman’s point about rhetoric consequences.

Even a progressive Democrat like Fetterman recognizes the dangerous trajectory of left-wing extremism under current conditions.

Newsom’s continued attacks on Miller as a “fascist” after Kirk’s assassination demonstrates the recklessness Fetterman criticizes.

The significant decrease in far-right violence contradicts mainstream media narratives about conservative extremism being the primary threat.

Fetterman’s call to “turn the temperature down” implicitly criticizes Democratic leadership’s inflammatory messaging strategy.

This study undermines years of media focus on right-wing extremism while ignoring growing left-wing violence.

The timing of Fetterman’s statement suggests internal Democratic concern about being blamed for escalating political violence.

The rare bipartisan acknowledgment from Fetterman gives credibility to Republican criticisms of Democratic rhetoric.

This data could reshape how Americans view political violence and which side poses the greater current threat.