Trump open to joining Istanbul peace talks with Putin and Zelenskyy amid Ukraine war deadlock

US President Donald Trump is open to attending a potential peace summit in Istanbul with Russian President Putin and Ukrainian President Zelenskyy, signaling a possible US diplomatic role in ending the war. The announcement came as Russia and Ukraine held a second round of peace talks in Istanbul, agreeing on a prisoner exchange but failing to secure a ceasefire. Russia again rejected Ukraine's proposal for an unconditional halt to hostilities.