I've noticed a couple changes since the assassination attempt, which may or may not be relevant. First, Trump seems a bit more subdued and serene. He made a point of focusing on unity, being president for "all Americans."
You should check his speech last night in Michigan. In essence, he:
railed against the “radical Left Democrats”, accused his opponents of “rigging” the election and calling Mr Biden “crooked”.
goaded Nancy Pelosi over reports that she has advised Mr Biden to quit the election race, accusing her of turning on the president “like a dog”.
resumed his claims that South and Central American countries are sending their criminals to the US.
“They’re dumping their criminals in the United States, and we’re not gonna take it anymore,” Trump said, prompting a standing ovation from the crowd as he promised to deliver the “largest deportation operation” in history.
“When I return to the White House, we will stop the plunder, rape, slaughter and destruction of our American suburbs and cities.”
So not much change there, at least in his speech, which may not necessarily translate to action. We'll see.