US Secretary of State Marco Rubio on Wednesday conceded that efforts to broker an end to the Ukraine war remain deadlocked, telling lawmakers in Washington that neither Russia nor Ukraine appears ready to make the concessions required for a peace agreement. The remarks, delivered before the House Foreign Affairs Committee, mark one of the Trump administration's most candid acknowledgements yet that its diplomatic push has hit a wall.

Key admissions before Congress

Appearing at a hearing on the State Department's Fiscal Year 2027 budget request, Rubio described the conflict as among the administration's most persistent diplomatic challenges. He said Washington had invested significant high-level effort but had yet to secure a breakthrough.

‘We've invested a lot of time in it. Unfortunately, so far, neither side has been willing to make concessions, particularly on the Russian side, necessary in order to bring peace about,' Rubio told the panel.

‘No military solution' to the war

The Secretary reiterated that the United States remains willing to play a constructive role if an opening emerges, while ruling out a battlefield resolution.

‘We remain ready to play any role we can in that context of bringing a peace about, because we think the war in Ukraine, devastating war, has no military solution. It can only be solved through a diplomatic route,' he said.

Not a neutral mediator, says Rubio

Pushing back against the framing of the US as an impartial broker, Rubio drew a sharp line on where Washington stands.

‘We are not impartial mediators in that war,' he said. ‘We don't provide weapons to Russia; we only provide weapons to Ukraine. We don't impose sanctions on Ukraine; we only impose sanctions on Russia. So, we have clearly taken a side.'

He confirmed that arms sales to Kyiv are continuing through the PURL programme, ‘unimpeded by what's happened in the Middle East or anywhere else'.

Democrats flag omission of Ukraine

The exchange came after Representative William Keating criticised the administration for not listing Ukraine among the State Department's major diplomatic achievements, as Rubio had outlined. Keating argued that the conflict remains one of the most consequential crises facing the United States and its allies.

Rubio acknowledged the frustration and said Washington would continue engaging both sides. ‘We stand ready, and we've engaged and invested a tremendous amount of high-level time on that conflict over the last year,' he said.

What happens next

With Rubio conceding that ‘the prospects don't look great that either side is prepared to make the concessions necessary in order to reach an agreement', attention now shifts to whether Washington can revive back-channel talks or whether the conflict drifts further into a prolonged stalemate even as US weapons keep flowing to Kyiv.