President Obama singled out Republican presidential hopeful Mike Huckabee on Monday over his "ridiculous" comments regarding the nuclear agreement with Iran. 

"The particular comments of Mr. Huckabee are, I think, part of just a general pattern," said Obama during a press conference in Ethiopia, The Huffington Post reported, which "would be considered ridiculous if it weren't so sad." 
Huckabee lambasted the Iran deal in an interview on Saturday, going so far as to compare it to the Holocaust. The former Arkansas governor said the agreement would essentially "take the Israelis and march them to the door of the oven."

Obama also pointed to Texas Senator Ted Cruz, who recently warned that the deal would make America "the leading state sponsor of terrorism," according to The Associated Press. 

"Maybe it gets attention and maybe this is just an effort to push Mr. Trump out of the headlines, but it's not the kind of leadership that is needed for America right now," said Obama, referring to the real estate mogul's recent rise in the polls. "In 18 months, I'm turning over the keys. I want to make sure I'm turning over the keys to somebody who is serious about the serious problems that the country faces and the world faces." 

The landmark deal between Iran, the United States, and other world powers was announced on July 14th, and marked the culmination of two years of negotiations. It is designed to curb Iran's nuclear program over the next ten years in exchange for the gradual lifting of crippling sanctions.