How bad does it have to be when your own advisers are going on the record to the New York Times, criticizing your ability to understand vital issues? Ben Carson Is Struggling to Grasp Foreign Policy, Advisers Say.

Faced with increasing scrutiny about whether Mr. Carson — who leads in some Republican presidential polls — was capable of leading American foreign policy, two of his top advisers said in interviews with The New York Times that he had struggled to master the intricacies of the Middle East and national security and that intense tutoring was having little effect.

“Nobody has been able to sit down with him and have him get one iota of intelligent information about the Middle East,” Duane R. Clarridge, a top adviser to Mr. Carson on terrorism and national security, said in an interview. He also said Mr. Carson needed weekly conference calls briefing him on foreign policy so “we can make him smart.”

[…]

Mr. Clarridge, who contacted Mr. Carson nearly two years ago to offer his services without pay, has helped the candidate prepare for debates. But the briefings do not always seem to sink in, Mr. Clarridge acknowledged. After Mr. Carson struggled on “Fox News Sunday” to say whom he would call first to form a coalition against the Islamic State, Mr. Clarridge called Mr. Williams, the candidate’s top adviser, in frustration. “We need to have a conference call once a week where his guys roll out the subjects they think will be out there, and we can make him smart,” Mr. Clarridge said he told Mr. Williams.

Mr. Williams, one of Mr. Carson’s closest friends, who does not have an official role in the campaign, also lamented the Fox News interview. “He’s been briefed on it so many times,” he said. “I guess he just froze.”

Good grief. One of the Republican Party’s front-running candidates for president.