A photo of the DraftKings headquarters from March 26, 2019 in Boston, Massachusetts. (Photo by Darren McCollester/Getty Images for DraftKings)

Five major sportsbooks that sued the City of Chicago earlier this week to stop a new tax on online sports wagering that went into effect Thursday withdrew a request for a temporary pause Wednesday after the city issued the companies licenses to ensure continued operations. 

However, they will still pursue their lawsuit, arguing the new law is at worst unconstitutional and at best unclear.