John Bolton, a former U.S. ambassador to the United Nations, is a senior fellow at the American Enterprise Institute, in Washington, D.C.

Former U.S. Ambassador John Bolton on how President Barack Obama’s handling of the Libyan conflict could empower Muammar Gaddafi.

Bush's former ambassador to the UN, John Bolton, on how Obama screwed up his predecessor’s handiwork in Iraq, the coming regional arms conflict—and what the president should say in his speech tonight about his decision to withdraw American troops.

Obama may have passed historic health-care reform, but former Ambassador John Bolton says the twin insults from Russia to Hillary Clinton and Israel to Joe Biden show the U.S.'s waning influence on the world stage.

Beijing pursues its interests aggressively. Washington does the opposite. John Bolton, Bush’s ambassador to the UN, says competing priorities drive Obama in the wrong direction with China.