Former UN Ambassador John Bolton offered a scathing critique of President Obama's foreign policy at CPAC on Thursday.
"Our biggest national security crisis is Barack Obama," said Bolton, who served under President George W. Bush.
He criticized the Obama administration's handling of Benghazi.
"Under Barack Obama you can murder his personal representative and get away scott free."
He also challenged Republicans to offer a better alternative in 2016.
"We can and must replace the Obama/Clinton/Kerry/Biden doctrine," he said. "That is the key to success this November and in 2016 and that is the key to ensuring America's freedom and security in the years ahead."
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