WASHINGTON - After prolonged discussions, US Senators from Republican and Democratic parties on Sunday unveiled a bipartisan border security bill aimed at enhancing border security and facilitating aid for Ukraine.

This pivotal accord, emerging from over three months of intensive negotiations, represents a rare consensus on an issue that has long eluded resolution in American politics, but could still face obstacles in the deeply divided Congress.

The deal proposes stringent measures on asylum claims and detention capacity expansion, coupled with substantial financial provisions for Ukraine and border security enhancements.

However, it stops short of fulfilling some stringent demands, leading to mixed reactions across the political spectrum.

The success of this ambitious legislative effort hinges on overcoming deep-seated divisions, with a crucial vote anticipated in the Senate to determine its viability.

Chuck Schumer, the Democratic Majority Leader from New York, announced his intention to schedule a preliminary vote on the border and Ukraine assistance proposals by Wednesday.

House Speaker Mike Johnson, a Louisiana Republican, however, has pronounced it "dead on arrival" in the Republican-controlled lower chamber.

"For too long, going back decades, the immigration system has been broken. It's time to fix it," President Joe Biden said in a statement released Sunday.

"Now we've reached an agreement on a bipartisan national security deal that includes the toughest and fairest set of border reforms in decades. I strongly support it," Biden said.