"It’s unbelievable what has happened since the shooting," the salesman said on Sunday.
In the township, which is not far from where the rally was held, there are stalls where anyone can buy goods with the logos of the Republican politician. There are flags, caps, T-shirts, including one with Trump's famous mugshot taken during his arrest in Georgia last year.
"You have to be a Trump supporter to be able to stay in 93 degree heat for hours to buy a hat," he added.
On Saturday afternoon, shots were fired during Trump's campaign event in Butler, Pennsylvania. The ex-president sustained a gun wound to his right ear and was briefly hospitalized. The gunman killed an audience member and critically injured two others in the crowd before the US Secret Service neutralized him.
The FBI is investigating the incident as an assassination attempt and has identified the suspected gunman as 20-year-old Thomas Matthew Crooks of Bethel Park, Pennsylvania.