Biden warns Republicans at Ukraine aid talks

WASHINGTON

U.S. President Joe Biden has warned Republicans Wednesday that blocking vital U.S. military aid for Ukraine threatened the "free world" as talks with congressional leaders at the White House failed to produce a breakthrough.

U.S. assistance for Ukraine has dried up with Republicans refusing to approve Biden's request for $60 billion for Kiev until the Democrat bows to their demands for measures to curb migration over the Mexican border.

The conflict has been intensified by the looming U.S. presidential election in November, and has raised deep concerns among Western allies who fear it could harm Kiev's fight against Russia's invasion.

Biden told the visiting House and Senate leaders that the months-long standoff "endangers the United States' national security, the NATO alliance, and the rest of the free world," the White House said.

"The president called on Congress to quickly provide additional funding to support Ukraine and send a strong signal of U.S. resolve. The president also made clear that we must act now to address the challenges at the border."

Biden's chief of staff Jeff Zients, National Security Advisor Jake Sullivan and Director of National Intelligence Avril Haines also took part in the talks on the White House side.

Biden has warned that Russian President Vladimir Putin will benefit from the chaos over Ukraine funding, saying it could encourage Moscow and other authoritarian regimes to make territorial grabs.

The Democrat has made support for Ukraine a key plank of his foreign policy and has sought to use it to burnish his global leadership credentials as he seeks reelection later this year.

He bundled the Ukraine aid together with money for Israel's war against Hamas and measures to strengthen the Mexican border as part of a huge $110 billion package he proposed to Congress in October.

His likely challenger, Donald Trump, is meanwhile leading hardline Republican moves to put illegal immigration over the Mexico border at the center of the election — and to use Ukraine as leverage to force change.

Ukraine has pleaded for more aid as it tries to push back Russia's forces, but after a failed counteroffensive last year it faces growing fatigue not just in Washington but in other Western capitals.