This morning we have a pair of significant Ukraine-related exclusives.

The first is a letter signed by more than two dozen of the nation’s top
foreign policy minds calling for a partial no-fly zone over Ukraine. The
push runs squarely against conventional wisdom in Washington, but their
missive will no doubt stir the conversation. 

Second, a new POLITICO/Morning Consult poll shows that Biden is enjoying
at least a slight “Ukraine bump.” The uptick — first documented by an
NPR/PBS/Marist survey released Friday — appears to be real, though how
long it lasts is anyone’s guess.

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Raghu Manavalan is the Host of POLITICO's Playbook.
Jenny Ament is the Senior Producer of POLITICO Audio.