instruction: When was the the docu-series 'The Circus' created?
output: The Circus is an American television documentary series initially following the 2016 presidential race.
input: The docu-series premiered on January 17, 2016, and focused on the 2016 U.S. presidential election, January to November. It was renewed for a second season, which premiered on March 19, 2017, and focused on President Trump's first 100 days. It returned on April 15, 2018 for a third season, and focused on the mid-term elections, with CBS News anchor Alex Wagner stepping in as co-host to replace Mark Halperin, who was replaced on January 3, 2018, by the show, after sexual harassment allegations. Jennifer Palmieri joined as guest host beginning October 13, 2019, with season four episode twelve, Desperate Times, Desperate Measures, and joined as a permanent co-host in season 6.