“It is very much in our interest," said the senator, back from a trip to Ukraine and Iraq.
Ukraine's president is expected to update leaders on peace talks.
“Everything is on the table right now," said Ambassador to the EU Anthony Gardner.
The U.S. has a major strategic decision to make.
Lawmakers have been away for several significant developments on both fronts.
“We have to face it as much as the British do,” Rep. Peter King said.
He also criticized the administration for not flatly calling Russia’s actions an invasion.
European Union leaders agreed to draw up options within a week.
The national security adviser called Russian incursions dangerous and inflammatory.
Adviser Ben Rhodes warned of "additional costs" if Russia did not act.
Ukraine's currency is crumbling, and Putin couldn't be happier.
The agency is at the center of controversy after a series of high-profile flight bans.
Sergey Lavrov called Ukrainian statements "a blatant attempt to derail all the efforts."
The State Department had called the deal "completely inappropriate."
Obama said he wanted to see "follow-up" after reports of cease-fire in Ukraine.
"If I want, I take Kiev in two weeks," the Russian president reportedly said.
"I'm not sure that shakes the people that much,” Feinstein said.
The Republican senator said he is "astounded" by recent comments from the president.
“This is a watershed moment,” the Senate Foreign Relations Committee chairman said.
He called Russia's troop movements a "continuation of what's been taking place."
Policymakers must ask the questions about Ukraine's IMF stand-by program they didn't ask before.
How is escalation in Ukraine to be avoided without any attempt at a political solution?
However, rebels were reportedly still trying to hold on to Luhansk.
Ukrainian officials believe the convoy is a guise for Russia to send in equipment for rebels.