WBEZ brings you fact-based news and information. Sign up for our newsletters to stay up to date on the stories that matter.Former FBI Director Robert Mueller will investigate Russia’s meddling in last year’s election, and any possible collusion by the Trump campaign. This episode: host/congressional reporter Scott Detrow, congressional correspondent Susan Davis, and national political correspondent Mara Liasson. More coverage at nprpolitics.org. Email the show at firstname.lastname@example.org. Find and support your local public radio station at npr.org/stations.