The National Review's editorial will likely amplify suggestions that Gingrich exit the field to allow conservatives to coalesce around Santorum.
"Santorum has won more contests than Gingrich (who has won only one), has more delegates, and leads him in the polls. In at least one poll, he also leads Romney," the editors wrote.
Still, Gingrich's campaign will likely point to the fact that the National Review has never been a fan of his candidacy, writing in December of last year that a Gingrich nomination could deal a "blow" to Republican chances to win back the White House.
"Gingrich himself has never run for a statewide office, let alone a national one, and has not run for anything since 1998. That year he was kicked out by his colleagues, the most conservative ones especially, who had lost confidence in him. During his time as Speaker, he was one of the most unpopular figures in public life," the editors wrote then.
The call for Gingrich to exit the race could also play into the former Speaker's narrative about media persecution, which earned him favor at Republican debates and was partially responsible for his surprise win in South Carolina.