Members of the Future Farmers of America reportedly shouted slurs at attendees and followed them into the parking lot of Frontier High School in Bakersfield, California.
The campaign website warns customers they should "anticipate a delay in delivery due to overwhelming support."
The president said he won't "make it harder for good, solid, law abiding citizens to protect themselves."
John Lambert, 23, from Knoxville, Tennessee, had set up a law firm and was described by the prosecutor as "just a wolf in sheep's clothing."
The friendly interview marked a departure from the grilling Williamson received last week over past comments on anti-depressants.
The incident occurred outside the venue where the president was addressing a rally in Cincinnati, Ohio.
Reactions on Twitter to this "shade" have been fast, prompted originally from a post by "The Daily Show."
Trump has me wondering if the America I always thought to be my America ever think the same of me. But I'm not going anywhere.
Ivanka Trump "knows it's against the law" to promote "Make America Great Again" in her official capacity "but she did it anyway, even after the unprecedented Conway decision," a spokesman for the watchdog said.
The comedian mocked the president's attempt to "officially re-launch the campaign he has never stopped."
"Right now, I'll never rule anything out," Trump Jr. told Fox News host Sean Hannity in March when asked if he planned to run.
Fireworks displays were previously stopped due to fears that a pine beetle infestation in the area would cause a fire.
The former vice president gave his first full interview since announcing his intention to run in 2020.
"This president has changed the game," said campaign manager Brad Parscale.
"We encourage our students to be politically active. But our employees, there are certain work rules."
"This is really frightening. We have a president who makes these propaganda videos you'd expect to see from Stalinist Russia or North Korea," Eugene Gu tweeted.
"I just want to clarify for them," the Democratic congressman said, "Windmills don't actually cause cancer."
"I was not drunk, I was not loud, I was not using profane language, I was not creating a scene – nothing. They said it was just because of the hat."
The New York man accused of killing Gambino Mafia boss Frank Cali was a victim of internet hate speech "spewed" online, and by the White House, his lawyer said after a court hearing on Monday.
"F*** Gucci , Im wearing Tom Ford LOL," rapper 50 Cent commented after tweeting Ford's fake quote.
"Unfortunately, we expect to see more of this," the director of the Center for the Study of Hate and Extremism at California State University, San Bernardino, told Newsweek.
A Virginia school district is investigating video appearing to show a teacher's assistant wrapping a "Make America Great Again" flag supporting President Donald Trump around a student's head.
"She felt she had to stand up for herself and for other people," Emmanuel Santos said of his wife, Rosiane Santos, who is now facing deportation.
A Massachusetts woman was arrested for assaulting a man wearing a "Make America Great Again" hat at a Mexican restaurant.
"What about MAGA and the tens of millions of people you insulted with your racist and dangerous comments!?" the president posted.