Washington (CNN) - Sen. John McCain says the escalating crisis in Ukraine is the result of what he calls a "feckless foreign policy" by the White House.
Speaking Monday at the American Israel Public Affairs Committee (AIPAC) annual conference in the nation's capital, the Republican senator from Arizona was critical of the man he lost to in the 2008 presidential election.
"The President of the United states believes that the Cold War is over. That's fine, it is over but (Russian President Vladimir) Putin doesn't believe it's over. He doesn't believe that this is a zero sum game. Look at Moldova. Look at the occupation of Georgia. Look at the pressure on the Baltic nations. Look at what they are doing in assisting (Syrian President Bashar al) Assad slaughter tens of thousands of innocent people in cities and towns and the countryside all over Syria. It is an outrage," McCain said.
McCain added that Putin's use of military force in the Crimean Peninsula, an autonomous region of eastern Ukraine with strong loyalty to Moscow, "is the ultimate result of feckless foreign policy where nobody believes in America's strength anymore."
Watch: Sen. John McCain will appear on CNN's "Wolf" with Wolf Blitzer at 1 p.m. ET.
McCain, a vocal critic of Obama when it comes to foreign policy, has used the word "feckless" in the past to describe the President's response to international crises. The senator is a member of the Senate Armed Services Committee and Senate Foreign Relations Committee.
Discussing what options the United States has in responding to Moscow, McCain said "I have to be very honest with you there is not a military option that could be exercised now but the most powerful and biggest and strongest nation in the world should have plenty of options. And those options are many."
Earlier Monday, Rep. Ed Royce, chairman of the House Foreign Affairs Committee, said Monday the best leverage the U.S. can exert for now is "financial."
"The Achilles heel for Russia is their economy–the ruble," the California Republican said on CNN's "New Day."
"We have to lead and we have to rally Europe around a series of steps that would actually impact the Russians economically: sanctions against state-owned banks," he added.
Secretary of State John Kerry, due in Kiev Tuesday, said several foreign powers are looking at economic consequences if Russia does not withdraw its forces.
CNN's Paul Steinhauser and Ashley Killough contributed to this report