MESQUITE, Nev. — A return to office for ex-President Donald Trump will motivate two voters here to ditch America for Europe, the seniors told The Post. But a young first-time voter vows to tough it out should Vice President Kamala Harris take the top job.

Cynthia Stowell and Ron Johnson sat outside one of two polling places in this city of 23,000 in northeast Clark County, where seven out of 10 swing-state Nevada voters reside, and said they both voted for Harris. Johnson said he’d voted early by mail, while Stowell had just finished casting a ballot.

“I think Trump is a criminal. I don’t want a criminal in charge of my country,” Stowell said. Johnson praised the veep as standing “for the things that we believe in, both her economic policies that she’s intending to enact . . . and the way she projects positivity instead of negativity.”

Should Trump return to office, Stowell said, “I’m moving to Portugal.” Johnson agreed, saying, “I go where she goes.” Trump would “institute terrible policies and turn Americans against each other and take out his retribution that he’s talking about, and I don’t want any part of that.”

Ashley Dean, 20, a Utah Tech University student who lives in Las Vegas, stopped in Mesquite to register and vote in her first election. Holding a Trump yard sign and a newly purchased Trump T-shirt, she said it’s her duty to cast a ballot this year.

“It was very important that we all decide to vote,” the marketing major said. “It doesn’t matter what age we’re at. We need to be informed and educated. So I made the choice to come down today and vote.”

She said border security tops her list of priorities.

“Our world is so different nowadays, and I think it’s unsafe for certain things that are allowed. And I’ve heard of different cases of our border control, which I think we definitely need to pay more attention to,” she said. It’s more at risk for those people who are having all those allegations with the aliens, rapists, and I just think that we need to be more aware of what’s going on in our country.”

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Asked whether she would leave the United States if Harris wins, Dean said she’d stay and “work harder.”

“I’m not gonna say that we’re all gonna die, because I don’t think it’s true. I just think it’s fair that I have the right to say what I want, and if I don’t get what I want, then I will still persevere and do better.”