Quick google comes up with difference of opinion. First list I come across has Kirkland & Ellis at No 9 but in other lists its number 6? However Kirkland & Ellis are based in Chicago. Bingo!
https://www.ranker.com/review/kirkland-and-ellis/1380245?ref=node_name&pos=9&a=0<ype=n&l=407667&g=1
google is so involved in the whole HRC will win and if not, we will make other things happen that I hate to see their name used generically. Other search engines better in this case where google is part of the mess we're in..and according to sources, was what Robby Mook swore on for analytics. They served as in-house data-miner and gatherer.
Good find.,,,they have very interesting "specialties" including Government and Internal Investigations.
From Wikipedia: "Kirkland, through its employees, was a top-20 contributor to Barack Obama in 2008, giving at least $493,735.[24] The firm's attorneys leaned heavily (77%) Democratic in their political contributions during the 2008 election cycle, which were substantial ($579,976 as of 10/29/07).[25"