WINDHAM, NH (CBS) – A Windham man was arrested for allegedly slapping a 15-year-old boy who was inside a Trump campaign tent during the New Hampshire primary on Tuesday.

Police said 34-year-old Patrick Bradley exited the voting polls inside Windham High School and slapped the boy across the face.

The boy was in a campaign tent for President Donald Trump with other supporters and workers. When two other adults stepped in, Bradley allegedly assaulted them too. He is also accused of throwing Trump campaign signs and attempting to knock over the tent.

Just the day before, President Trump held a rally in Manchester to energize his base.

The boy’s father told WBZ-TV that when his son showed up at the polling location he was excited to have a way to take part in the election process. He even had his picture taken with Donald Trump Jr.

Trump Jr. later tweeted out the photo with a caption saying in part: “Just got off the phone with him & his mother. I thanked them for being such strong supporters. My family has your back…”

The teen’s father was one of the first responders called to the scene after the attack and says his son is doing OK, but is nervous about when Bradley is no longer behind bars. While he wants the attention to go away, the experience has provided a civics lesson.

Bradley was arrested Thursday afternoon and charged with three counts of simple assault and one count of disorderly conduct. He was ordered held on $5,000 cash bail after pleading not guilty at his arraignment Friday morning.

President Trump easily won New Hampshire’s Republican primary against minimal opposition.