The consolidation focuses and directs Obama’s political activity and fund-raising for a cause that has become a major focus since he left the White House: gerrymandering reform.

It ends the six-year existence of OFA, formed out of the pieces of Obama’s reelection campaign, which at times struggled to find footing with a clear mission. The Chicago-based group will cease to exist.

“People want commonsense gun-safety laws; Congress ignores it. People want compressive immigration reform; Congress ignores it,” Obama said in a call with top supporters on Thursday night. “The single most important thing that could be done at the grassroots level over the next few years is to make sure the rules of the road are fair. If we do that, I think we’ll do the right thing.”

Read: Barack Obama makes the case against Trump

OFA was initially set up as a vehicle to provide pressure for Obama’s agenda in his second term. The group was ready to close down entirely two years ago, had Hillary Clinton won.

Trump’s election gave the group new life, and over 2017, it became a nexus for a range of newly formed resistance groups to train in organizing, particularly in last summer’s fight to defeat Obamacare repeal. Then, in 2018, the group—which had always insisted it wasn’t about electoral politics—shifted into organizing for Democrats running in the midterms.

Meanwhile, Obama had put more energy into the redistricting-reform group he backed and which he recruited Eric Holder, his friend and former attorney general, to chair.

The merger will now create a “joint force that is focused on this issue of singular importance,” Obama said on Thursday.

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The merging of the organizations will begin almost immediately, building off a working relationship the groups formed during the 2018 midterms. Eager to get Obama voters engaged in the esoteric issue of redistricting, the NDRC tapped the OFA list, hosting multiple virtual house-party nights and helping rouse the most die-hard supporters of the former president to vote on the issue and spread the word.

The results of the midterms were good news for the effort: Democrats flipped nearly 400 state-legislature seats and eight overall chambers, in addition to eating away at several Republican supermajorities. Those wins, along with the governor’s races that the Democrats flipped, put the party in much stronger shape ahead of the 2020 census and the next round of drawing the electoral maps, in 2021.

Holder, who will continue chairing the group as he considers whether to launch a 2020 campaign himself (on Thursday, he’d say only that he was thinking about it and would make a decision by early 2019), called the merger “a way to maximize the incredible impact that OFA has had in the past and continue it into the future—this is a natural extension of the work we’ve been doing over the past year.”