The Democratic National Committee plans to offer Bernie Sanders seats on a key platform committee this summer at the party’s convention, according to a Washington Post report.

{mosads}Sanders has said remaining in the presidential race despite lagging behind rival Hillary Clinton in delegates is a way to shape the party’s platform to align with his own progressive politics; his proposals include a $15 national minimum wage and a single-payer healthcare system.

Tensions between Sanders and the Democratic Party have grown in recent weeks. He accused the party of stacking the deck against him in an effort to hand Clinton the nomination recently sent a letter to DNC Chair Debbie Wasserman Schultz demanding more committee spots at the convention.

Strife between Sanders and his supporters and the DNC erupted at the Nevada Democratic Convention over the weekend when Sanders supporters shouted Clinton supporter Sen. Barbara Boxer (D-Calif.) off the stage and made claims of an unfair process.