10 reasons National Review doesn't want Trump in the White House.

The conservative thought leaders argue why they think Trump is a nightmare. 

National Review and a group of conservative thought leaders took a strong stand against Donald Trump on Friday.

In a special issue titled "Against Trump," the 65-year-old magazine founded by William F. Buckley railed against Trump's "unmoored" and "opportunistic" populism. The editors published a scathing editorial on the GOP front-runner, while 22 conservative thinkers weighed in on why they think Trump poses a threat to American conservatism.

National Review's outspoken opposition to Trump has already yielded tangible results: Late Thursday night, the Republican National Committee disinvited the magazine from participating in the February 25 GOP debate.

But whether the united front curbs Trump's popularity among the conservative base, or merely reinforces it, remains to be seen.

Here are highlights from National Review's editorial and excerpts from 10 of the participants in the latest issues.