U.S. and Ukrainian negotiators said Sunday's meeting on ending the war with Russia—which included talks on possible elections, land swaps and security guarantees—was productive, and top U.S. envoys will head to Moscow on Monday for further discussions. Secretary of State Marco Rubio, U.S. special envoy Steve Witkoff and President Trump's son-in-law Jared Kushner met with Ukrainian counterparts for more than four hours. Rubio said they made progress, adding that the negotiations are complex. The talks covered possible timetables for new elections in Ukraine, and the prospect of land swaps between Russia and Ukraine, according to a senior U.S. official. Other crucial issues remain unresolved including the nature of U.S. and Western security guarantees for Ukraine and whether the Kremlin will continue to demand international recognition of the territories it has seized from Ukraine since it launched its full-scale invasion in 2022.