Sen. Lindsey Graham (R-S.C.) on Friday defended his criticism of U.S. Ambassador to the U.N. Susan Rice’s statements in the aftermath of the Benghazi attack and charged President Obama with “stonewalling the American people.”

“I blame the president above all others,” said Graham, speaking on Fox News.

Graham said that, compared to the administration’s disclosures about other foreign policy issues, the White House has been reluctant to provide insight into their response to Benghazi.