Special counsel Robert Mueller’s Russia investigation will be under increasing pressure to adhere to Justice Department guidance aimed at making sure the department’s work doesn’t influence elections — guidance that was put in place by President Barack Obama’s attorney general, Eric Holder.

The possibility that Mueller’s work could affect the midterm election either way is an idea that has crossed the minds of Republicans and Democrats alike. President Trump worried Tuesday that Mueller’s team might be open to “meddling” with the election, and Sen. Chris Coons, D-Del., said Wednesday that it’s “important” for Mueller to “avoid any major announcements” in the months ahead of the midterms.