"The Circus: Inside the Wildest Political Show on Earth" ventures behind the scenes in Washington and elsewhere to explore the powerful shift in dynamics on Capitol Hill as the Democrats take control of the House of Representatives. The drama surrounding President Donald Trump's White House continues to rise with legal entanglements and continued scrutiny. With the 2020 presidential race looming on the horizon and starting to form, those who seek to challenge Trump for the White House set out and form their own forays on the campaign trails.