President Donald Trump will now have nightmare since former President Barack Obama is returning to politics. A close aide to Obama said that he’s started a “delicate dance” as he re-emerges on the national political scene this fall.

Obama reportedly plans to play an active role in helping the Democratic party rebuild, however, without becoming the face of the party. He doesn’t intend to become a lightning rod for Trump.

While insiders expect that Obama will be focusing on fundraising. The Hill cites that Obama in the recent months has played a larger behind the scenes role than was publicly known. For instance, he had done a fundraising event for the Democratic National Committee and National Democratic Redistricting Committee after leaving office.

In July, Obama had a meeting with DNC Chairman Tom Perez along with lawmakers at his office to offer his guidance on several issues, reports The Hill. Nevertheless, Obama doesn’t want to inflame Trump’s obsession with him even more.

The former president isn’t even interested in drawing focus from the Democratic party and its endeavor to refocus its message and move forward.

Julian Zelizer, a professor of history and public affairs at Princeton University, said, “He has to be careful. At a moment when President Trump’s approval is falling so fast—including with his base—there is a risk for Obama taking center stage and triggering the energy that many Republicans currently lack.”

And Cal Jillson, a professor of political science at Southern Methodist University, added, “He would be the target against which Trump would direct his fury. From Trump’s perspective, nothing better could happen.”

Since leaving office, Obama’s approval rating remains incredibly high at 63%, according to a Gallup survey conducted in June, while Trump’s job approval numbers are tumbling, to just under 37%.