The U.S. is showing its support today for Ukraine's new leadership. Secretary of State John Kerry walked the streets of Kiev, where nearly 100 anti-government protesters were gunned down by police last month. To people who pleaded for American help, Kerry promised that aid is on the way. The Obama administration has already announced a $1 billion energy subsidy package, and Kerry told Ukrainians that Obama is "planning more assistance.''
President Obama calls Russia's intervention in Ukraine a violation of international law and Ukrainian sovereignty.
"We are examining a whole series of steps; economic, diplomatic, that will isolate Russia," he said.
The latest comments came as the U.S. considers possible sanctions against Russia for sending troops into the Crimean region, which President Obama called "unprovoked."
"The strong condemnation that it's received from countries around the world indicates that Russia's on the wrong side of history on this," the President emphasized.
He insisted that Ukrainians must be allowed to control their own destiny. Republican Senator John McCain condemned the President, calling his foreign policy, "feckless" and partially to blame for the mounting crisis in Ukraine.
At the same time, New York Senator Charles Schumer says there's a lot more the U.S. can do to pressure Russian President Vladimir Putin to pull his troops out of Crimea. The Pentagon has already suspended military ties with Russia over its incursion into Ukraine.
"We do have some tools in our toolbox to put pressure on Putin. They're economic tools, they are geo-political tools, they are diplomatic tools." Schumer said.
He continued to say that Putin craves acceptance in the world community which is why he spent $50 billion on the Olympics. The senator says the U.S. should use its understanding of what makes Putin tick against him and do it forcefully.
Russia's ambassador to the UN Security Council says his country's actions in Ukraine are legal and appropriate. In an open session of the UN Security Council, the ambassador said through a translator his country is reacting to the new Ukrainian government's efforts to root out pro-Moscow political parties and supporters.
"The victors want to use the fruits of their victory to trample the rights and basic freedoms of people," said the Ambassador.
Russia's ambassador to the UN Security Council says his country's actions in Ukraine are appropriate, while America's ambassador says Russia is reacting to an imaginary threat.
"They're talking about defending our citizens and compatriots on defending the most important human right; the right to life," he said.
In an open session of the UN Security Council, Russia's ambassador said his country is reacting to the new Ukrainian government's efforts to root out pro-Moscow political parties and supporters. American Ambassador Samantha Power fired back by saying there's no evidence that any such thing is taking place.
PHOTOS: TENSION IN UKRAINE