Dean Phillips went after Biden’s age. Now he’s targeting his progressive bonafides.

 Dean Phillips went after Biden’s age. Now he’s targeting his progressive bonafides.

President Biden has a couple main vulnerabilities. His newest primary opponent is moving to exploit them.

The dig wasnt just some off-the-cuff moment. It was illustrative of a new strategy Phillips is seeking to deploy as he takes on Biden in the Democratic primary. The man oft described as a Minnesota m…