“This is Chicago, protesters are an industry,” Rubio said on Fox News late Friday. “It is clear, just from watching some of these images, that this was an organized effort, an orchestrated effort, from groups that wanted to disrupt this event, and Chicago is a hub for that sort of activity.”
But Rubio added that Trump “bears some responsibility for the general tone” at his rallies.
“He most certainly … has in the past used some pretty rough language, saying, ’In the good old days we used to beat these people up,’ or ‘I’ll pay your legal bills if you rough them up,’ ” he added.
In a separate news conference on Friday, the Florida senator was even harsher toward Trump, saying the businessman “clearly has used language that appeals to anger.”
“I would point out there isn’t violence at my events,” Rubio said, adding that the same can be said of rivals Ted CruzRafael (Ted) Edward CruzCrenshaw looms large as Democrats look to flip Texas House seat SCOTUS confirmation in the last month of a close election? Ugly The Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' MORE and John Kasich, as well as Democratic presidential candidates Hillary ClintonHillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE and Bernie SandersBernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE.
“There’s only one presidential candidate who has violence at their events,” he concluded. 
“And I do think Donald needs to realize and take responsibility for the fact that some of the rhetoric he has used can potentially be contributing to this environment.”
Trump’s Chicago rally Friday night was called off amid massive protests.
The businessman’s supporters and protesters clashed into the night on the streets. 
Trump slammed the protesters in an MSNBC interview late Friday night.
"It's a little bit sad when you can't have a rally in a major city in this country,” he said. “What ever happened to freedom of speech? What ever happened to the right to get together?"