President Donald Trump headlined a Turning Point Action rally on Friday, where he and the widow of TPUSA founder Charlie Kirk, Erika, spoke to a crowd in Arizona for the “Build the Red Wall” event in an effort to support Republicans running in the Arizona midterm elections.

At the top of his speech, Trump memorialized Kirk, who was assassinated at Utah Valley University last year on September 10. “Charlie was murdered by a cruel and vicious assassin who believed that by silencing his voice, he could kill an entire giant movement,” the President said. “But standing here today, it’s clear to see that Charlie’s voice is not silenced. It’s roaring. And roaring back loudly, frankly, than ever before.”

Arizona’s leading Republicans, as well as Erika Kirk, took the stage to warm up the crowd before the president spoke. He was on stage for around an hour, addressing topics from Iran to UFOs. During the speech, he teased that the administration would be releasing government files related to UFOs soon.

“I recently directed the Secretary of War … to begin releasing government files relating to UFOs and unexplained aerial phenomena,” Trump said. “And I figured this was a good crowd because I know you people –– you’re really into that, I don’t know if I am.”

He added, “This process was well underway and we’ve found many interesting documents, I must say, and the first releases will begin very, very soon.” Trump’s stop in Phoenix, Arizona event is the second of two important stops he has made in swing states: Arizona and Nevada. Usually, the party in power is at a disadvantage during midterm elections.

Trump remarked on this. “It doesn’t make sense,” he said. “Even if you have a President who is doing a good job. It should be the opposite, we’re doing well, we’re doing our job, we’re ending wars.”

He wrapped up his speech, telling the audience: “Win those midterms, Arizona.”