It happened. On Monday, Russian President Vladimir Putin sent troops \u2014 er, \u201cpeacekeepers,\u201d as Moscow\u2019s propaganda machine is calling them \u2014 into separatist regions of Ukraine. The move came less than a day after Putin and President Joe Biden agreed \u201cin principle\u201d to make a last-ditch effort at diplomacy with a face-to-face meeting. Secretary of State Antony Blinken was set to iron out those details in a meeting with his Kremlin counterpart Thursday. But with the Russian military rolling across Ukraine\u2019s borders, there are questions about whether that can happen.\nSubscribe to POLITICO Playbook.\nRaghu Manavalan is the Host of POLITICO's Playbook.Jenny Ament is the Senior Producer of POLITICO Audio.