Sen. Lindsey Graham on Sunday called Secretary of State John Kerry's defense of President Obama's foreign policy “delusional" and criticized the administration for not taking a tougher stance against Russia.

“It scares me that [Kerry] believes the world is in such good shape,” said the South Carolina Republican. "America is the glue that holds the free world together. Leading from behind is not working."

Graham rebuked Kerry for failing to call Russian President Vladimir Putin "the thug that he is."

As Kerry made several appearances on Sunday morning news shows, Graham said the secretary “gave the most ridiculous and delusional summary of American foreign policy I could imagine.”

Graham urged the administration to arm the Ukrainian military “so they can defend themselves against rebel separatists supported by Russia.”

The senator also called for additional sanctions aimed at Russia's wealthy and influential energy and banking sectors in order to “hit Putin as an individual.”

“The Europeans are never going to lead on this issue. It is indispensable that America lead,” he said.

Graham also slammed Obama's “indecision” in dealing with Russia in its conflict with Ukraine.

“President Obama’s become the king of indecision. His policies are failing across the globe and it will come here soon,” Graham said.

“There’s a battle of wills between the KGB colonel and the community organizer. And the colonel is winning.”