President Joe Biden’s top national security adviser dismissed congressional pushback on a $40 billion Ukraine package as “strange,” but said it would not change the bill’s trajectory.

“There are some voices against this, but the chorus of voices on both sides of the aisle, from all sides of the political spectrum, [is] in favor of standing up in defense of Ukraine's sovereignty and freedom and independence,” Jake Sullivan told reporters Wednesday.

Sullivan said the House of Representatives had not only approved Biden’s initial $33 billion bill, but added to it, tacking on an additional $7 billion.

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He called the pushback “a strange premise” and said he expects support for the final vote in the Senate to be “overwhelming bipartisan.”

Passing the legislation “sends a clear message to the world the United States can pull together behind the brave people of Ukraine in their hour of need.”

A number of Republican senators have raised concerns about the cost.

Sen. Marco Rubio (R-FL) called on Washington to define the scope of the war in an op-ed Tuesday, writing that “we owe it to the American people to clearly articulate our goals and objectives in Ukraine.”

“[W]hen working families are asked to spend billions of dollars a week on a “war of attrition,” they deserve to know why,” the senator wrote.

Sen. Mike Braun (R-IN), who voted no on the bill, said the cost of the bill needs to be balanced by cuts elsewhere, especially as U.S. residents face rising prices, inflation, and supply shortages.

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“I support helping Ukraine expel the Russian invasion, but as inflation, gas prices, and shortages wallop Americans here at home, I can’t support $40 billion of new spending unless it’s offset with cuts or taken from already authorized funds, especially when the European Union isn’t matching what we’re doing to end this conflict in their own backyard," Braun said.