Democratic leader Chuck Schumer announced Thursday that the US Senate will unveil its new aid plan for Ukraine this week, hours after the European Union approved a 50 billion euro aid package for Kiev, AFP reported.

“We intend to publish the full text (…) tomorrow and no later than Sunday,” said the leader of the Democrats in the House of Representatives. He said he hoped for a first vote on the text “at the latest” on Wednesday.

For months, the U.S. Congress has stalled a $61 billion aid package to Ukraine that President Joe Biden and his colleague Volodymyr Zelenskyy have been pushing for.

But after nearly two years of a protracted war and Congress having already unblocked more than $110 billion, Republicans in particular see the bill as too harsh.

They are conditioning their support for this new package on a strong tightening of US immigration policy, an issue that is still under negotiation.

To pass, the package must pass the Senate and then the House of Representatives. House Speaker Mike Johnson warned that at this stage, any vote on new funds to help Ukraine and strengthen the border with Mexico is “stillborn.”

President Joe Biden, who is trying to pass a package of measures, called the president of the European Commission to thank the EU for approving a 50 billion euro aid package for Kyiv, the White House said on Thursday.

Joe Biden thanked Ursula von der Leyen “and the European Union for this significant financial package (…) that will greatly help Ukraine as it continues to fight against Russian aggression,” said John Kirby, a spokesman for the US executive branch.

On Thursday, European leaders agreed on a €50 billion aid package for Ukraine that had until then been blocked by Hungarian Prime Minister Viktor Orbán, and the announcement was immediately hailed by Kyiv as a “joint victory” over Russia.