As the Iowa caucuses near, Playbook’s Ryan Lizza and POLITICO Politics Bureau Chief Jonathan Martin go deep on what we know – and what we’ll soon find out – about Joe Biden, Donald Trump, Nikki Haley, and Ron DeSantis’ campaigns.

Ryan Lizza is a Playbook co-author for POLITICO.
Jonathan Martin is politics bureau chief for POLITICO.
Kara Tabor is a producer for POLITICO audio. 
Alex Keeney is a senior producer for POLITICO audio.

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