WASHINGTON — Nebraska’s senior U.S. senator is voicing her cautious support for sending billions of dollars worth of munitions to Ukraine.

Sen. Deb Fischer made her comments in a phone interview Thursday afternoon. Her support is rooted in stopping Russia’s aggression. Fischer is the second-most senior member of the Armed Services Committee and says intel shows Russia might not stop its invasion at Ukraine.

“They have, I would say, visions of reestablishing the Russian Empire and this is only the first step,” Fischer said.

House members are discussing a $95 billion package of foreign aid for Ukraine, Israel and Taiwan. Fischer wants to see what specifics are included in the bill before definitively saying she’s in favor of it.

“These are dangerous times, these are serious times," Fischer said. "I think we need to be measured in our approach, we need to be thoughtful in our approach, but we have to be realistic about the world we live in and America’s place in that world.”

Fischer said she liked parts of February’s bipartisan border deal, which included a similar foreign aid package. She says she ultimately voted against it because she felt it was more about immigration reform than border security.

Fischer says it’s possible the Senate could stay over the weekend in order to vote on the proposed foreign aid package.