What recent diplomatic developments have occurred between President Trump and Russian President Putin regarding the Ukraine conflict?

President Trump recently engaged in a 90-minute phone call with Russian President Putin, describing it as "long and productive." During this conversation, both leaders discussed their shared desire to end the ongoing conflict in Ukraine, with Trump emphasizing his goal to halt what he characterized as "millions of deaths" (though actual casualties are estimated over 100,000, not millions). The diplomatic outreach has led to potential plans for an in-person meeting between Trump and Putin, possibly in Saudi Arabia, marking a significant shift in US-Russia relations. Trump noted that Putin even referenced his campaign motto of "common sense," suggesting both leaders believe strongly in this approach to resolving the conflict that has persisted for three years since Russia's full-scale invasion of Ukraine.