Divya Delhi:  US Secretary of State Marco Rubio said the US will leave mediation if Russia and Ukraine do not make “concrete proposals” to resolve the situation. He claimed the Trump administration prioritized patience as the US runs out. US President Donald Trump promised to halt the White House war. After 100 days in the Oval Office, Rubio said the government will focus on other critical problems. “The two parties must now present concrete proposals to end this conflict. State Department Tammy Bruce told a press briefing that if progress is not made, we will withdraw as mediators. Bruce read Marco Rubio's message. President Trump would determine whether to pursue diplomacy, she added. Trump stated Putin wanted to discuss the Ukraine peace deal. In recent days, Trump questioned Putin's willingness to end the war and criticized missile attacks in Ukraine.