Watch: What you need to know about the man overseeing the Russia probe

The Justice Department announced Wednesday that former FBI Director Robert Mueller would serve as special counsel to oversee the federal investigation into ties between President Trump's campaign and Russia.

Deputy attorney general Rod Rosenstein appointed Mueller to oversee the probe after Trump abruptly fired FBI Director James Comey last week, prompting outcry and calls for a special prosecutor.

Watch the video above to learn more about the former FBI director tapped to oversee the Russia probe.