Organizing for Action, the progressive group born out of Barack Obama’s old campaign apparatus, is joining the redistricting effort that Obama has made a central cause of his post-presidency.

On Monday, OFA officially launched a partnership with the National Democratic Redistricting Committee, chaired by former Attorney General Eric Holder.

OFA officially runs independently from Obama, though the former president made the announcement himself.

“OFA volunteers and supporters will provide the grassroots organizing capacity and mobilization that we’ll need to win state-level elections and move other initiatives forward ahead of the 2021 redistricting process, making sure that states are in the best position to draw fair maps,” Obama wrote in an email sent to the OFA’s list, which he called “Our Next Fight.”

Read more: Politico, October 23, 2017