Leaders agreed to press Russian President Putin to abide by all aspects of a peace plan.
Ukraine unrest and breakdown of peace talks between Israeli and Palestinian expected to lead.
At least two people were killed in an attack in eastern Ukraine on Sunday.
Sen. Pat Toomey (R-Pa.) said he would push for the provision expiring in September.
The vice president spoke with Arseniy Yatsenyuk to welcome Ukraine progress.
The president will meet Thurs. with congressional leaders to brief them on his European trip.
The margin was narrow, with 43 percent disapproving and 42 percent approving.
"The United States will continue to consider additional steps," Jay Carney said.
“President Obama talks tough about Vladimir Putin," he said.
He's dedicated to finding those accused of taking threatening actions against Jews.
He will focus on efforts to help stabilize and strengthen the country's economy.
The Treasury Department announced sanctions against six "Crimean separatists."
The president thanked congressional leaders for passing Ukraine aid bill.
Pro-Russian forces expanded their hold on Crimea Saturday.
NATO said military action against Ukraine would amount to a breach of international law.