Steve Bannon is expected to launch a new project aimed at helping Republicans keep control of Congress, all in the name of preserving the power of his former boss President Donald Trump, who only a few months ago publicly denounced him.

Sources close to Trump so far say they don’t know how closely the president is watching his former chief strategist. And there are mixed signals as to how easily Bannon will be able to re-ingratiate himself with Trump’s inner circle, which he flamed out of earlier this year.

Bannon is expected to launch a “2018 war room,” according to two sources, to try to shape the midterm elections messaging on behalf of Republicans. He is pushing Trump’s advisers and congressional Republicans to make the possibility of impeachment under a Democratic-controlled House their core message.

It’s unclear how the group is set up and who is funding the operation.