Donald Trump says he’ll designate the Muslim Brotherhood a terrorist organization. When he does – and enforces it, he’ll make the most important policy course-correction towards jihadism since 9/11.

Until now, our government has refused to recognize that those like the Brothers determined to impose Islam’s totalitarian sharia – at least initially, through stealthy means, rather than violent ones – are our enemies, too.

Hereafter, President Trump must fulfill promises made in a key campaign speech in August 2016. He condemned the “ideology of Radical Islam” and pledged to screen out “any [immigrants] who have hostile attitudes towards our country or its principles – or who believe that sharia law should supplant American law.” He also promised “the support networks for Radical Islam in this country will be stripped out and removed one by one.”

Start with the Muslim Brotherhood’s vast “civilization jihad” network in America.

This is Frank Gaffney.