Politicians of every imaginable stripe and conviction are saying the same thing tonight in the wake of an incident at a Donald Trump campaign rally in Butler, Pa.

Political violence “has no place” in our system of government and politicking, they have said.

Trump spoke today at an outdoor rally. Then he flinched, grabbed at his right ear and sank to the ground. The Secret Service detail assigned to protect the former president were on him in an instant, shielding him from further harm.

Medical personnel rushed Trump to a center where he was treated for what looked like minor injuries to his ear and possibly the right side of his face. The Secret Service issued a statement declaring the former POTUS to be “safe” and “doing fine.”

For that we all should be relieved.

A shooter reportedly is dead. Eyewitnesses reported hearing several noises that sounded like gunshots. The district attorney then announced the authorities are treating this incident as an “assassination attempt.”

Now comes the difficult part of this commentary. How do we stop the kind of hateful rhetoric we’ve been hearing on the campaign trail? Too many speakers have spoken of doing violence to political protesters. They have lamented the presence of protests, even though the Constitution protects such activity as legitimate free speech.

I would advise Donald Trump himself to take stock of what he has said on the stump and wish for all I can that he cease the kind of rhetoric he has bellowed.

This incident, I fear, is a consequence of the deep divisions that have fractured this great nation.