The Dallas Morning News on Tuesday declared Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE is not qualified to serve as president, writing in an editorial that the GOP nominee does not represent Republican ideals.

The newspaper has endorsed the Republican Party's nominee for president every year since 1964. It said that for generations, it had been clear what it meant to be a Republican: "A belief in individual liberty. Free markets. Strong national defense."

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"But what does it mean to be a Republican today? With Donald Trump as the party's new standard-bearer, it's impossible to say."

Trump "thumbed his nose at conservative orthodoxy altogether," the Morning News wrote, adding that the GOP nominee has been "at odds with nearly every GOP ideal this newspaper holds dear."

"Donald Trump is no Republican and is certainly no conservative."

It slammed Trump's stance on immigration and his proposal to ban all Muslims from entering the country. It also criticized Trump's plans for trade and called out the GOP nominee for some of his positions regarding military.

"It's not easy to offer a shorthand list of such tenets, since Trump flips from one side to the other, issue after issue, sometimes within a single news cycle. Regardless, his ideas are so far from Republicanism that they have spawned a new description: Trumpism," the editorial said.

"We have no interest in a Republican nominee for whom all principles are negotiable, nor in a Republican Party that is willing to trade away principle for pursuit of electoral victory."

The publication said Trump should not reflect the "GOP of the future."

"Donald Trump is not qualified to serve as president and does not deserve your vote," the editorial said.