Rivals of Donald Trump roundly condemned him Saturday for the violence that broke out at his canceled rally in Chicago, saying it was the inevitable result of what they described as his dangerous and inflammatory rhetoric.

Republicans and Democrats seized on the Chicago mayhem to join forces in a collective attack on the Republican front-runner ahead of the crucial Florida, Ohio, Illinois and Missouri primaries on Tuesday.

Trump rival John Kasich, the Republican governor of Ohio, accused the New York billionaire of poisoning America’s political climate.

“There is no place for a national leader to prey on the fears of people,” Kasich told reporters outside Cincinnati. “Donald Trump has created a toxic environment, and a toxic environment has allowed his supporters and those who sometimes seek confrontation to come together in violence.”

Florida Sen. Marco Rubio was equally blunt: “This boiling point that we have now reached has been fed largely by the fact that we have a front-runner in my party who has fed into language that basically justifies physically assaulting people who disagree with you.”

Trump was unapologetic and laid blame for the violence on Democrats Hillary Clinton and Bernie Sanders, who are vying for their party’s presidential nomination.

“It is Clinton and Sanders people who disrupted my rally in Chicago – and then they say I must talk to my people,” Trump wrote on Twitter. “Phony politicians!”

Sanders responded by calling Trump “a pathological liar.”

It is far from clear that the violence in Chicago will loosen Trump’s hold on his millions of supporters. He has survived many controversies in the nine months since he launched his campaign.

But Kasich and Rubio, who are counting on home-state victories Tuesday to keep their candidacies viable, tried to turn the Chicago violence to their advantage on Saturday.

Campaigning in Largo, Fla., Rubio said the nation was being “ripped apart” along racial and class lines.

“I’m sad for this country,” he said. “This is supposed to be the example to the world of how a republic functions, and instead people are watching Third World images last night coming out of Chicago.”

Rubio faulted Trump for joking at a January rally with Sarah Palin in Iowa that he would pay the legal fees of any supporter who would “knock the crap out of” any protester who hurled a tomato at him.

“You saw those images last night of people getting in their face, often divided up (along) racial lines in many cases – the police officers bleeding from the head, reminiscent of images from the ’60s,” he said. “I mean, we’re going backwards here. This is a frightening, grotesque and disturbing development in American politics.”

Texas Sen. Ted Cruz was less pointed. “I am encouraging every candidate and every campaign to appeal to our better angels,” he said at a campaign stop in Missouri.

On the Democratic side, Clinton and Sanders suggested that Trump had incited the violence.