The Arizona Republic has responded to an influx of threats it has received since it endorsed Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE.

In a piece published Sunday, the paper explained its choice to endorse a Democratic candidate for the first time in its more than 125 years of existence.

"Over the many months of the campaign, we found ourselves with this question: Endorse no one, or endorse a Democrat for the first time in our history?" read the piece, written by the paper's president, Mi-Ai Parrish.

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"We made our choice soberly. We knew it would be unpopular with many people."

The piece, which said the paper chose "patriotism over party," went on to detail some of the responses it has received since its endorsement.

It first focused on an anonymous caller who brought up the name of a former reporter at the Arizona paper who was assassinated by a car bomb 40 years ago. The article said the caller threatened more reporters from the paper would be blown up because of the endorsement.

"I give you Kimberly. She is the young woman who answered the phone when you called," the piece said.

"She sat in my office and calmly told three Phoenix police detectives what you had said. She told them that later, she walked to church and prayed for you. Prayed for patience, for forgiveness. Kimberly knows free speech requires compassion."

The paper also referenced specific people in response to threats from callers who said the paper would be "shut down" or "burned down" and those who screamed at and threatened young people selling subscriptions door-to-door.

"To those of you who have called us hacks and losers with no purpose, and that we are un-American, I give you Dennis," the piece said.

"He is the investigative reporter who first revealed the despicable mistreatment of our veterans at the VA hospital. His work triggered comprehensive debate and, one hopes, lasting change. He and others on his team have been hailed as heroes by veterans’ families across the country. Dennis knows that free speech is sometimes the only way to hold the powerful accountable."

In the article, Parrish also thanked people who responded to the endorsement without threats, commending them for their "courage and bravery."

"To you, I give my gratitude," the piece said.

"I’m grateful that you stood up to say that we live in a better world when we exchange ideas freely, fairly, without fear."

At the end of the piece, the writer said journalists at the Arizona paper walk by an inscription every day when they walk into the newsroom. It "fills an entire wall, floor to ceiling."