When adult film star Brandi Maxxxx gets an early lead in the election, Leslie Knope comments "What is this, Italy?", this is a reference to Ilona Staller, a Hungarian-Italian porn star who was elected to the Italian parliament in 1987.
Other candidates on the ballot are Phon Du (fondue), Martin Lockheed and Tina Nabisco.
When Andy (Chris Pratt ) and April (Aubrey Plaza ) are brainstorming new places to live, the list includes Germany, Greenland, Australia, Moon, Winterfell (the fictional land in which Game of Thrones takes place), Montana, South Africa (with the initials DMB following - musician Dave Matthews is from South Africa), Russia (after crossing out USSR), Chicago, Florida, Everglades, Jamaica, Pegasus, New Caprica (from Battlestar Galactica (2004)), Georgia - not USA one, Bermuda, Bahama [sic], Key Largo, Montego, Cocomo (all places named in the 1988 Beach Boys song 'Kokomo'), Amazon village, Seattle, and Burly's house on Lake Michigan (Andrew Burlinson, the guitarist for Mouse Rat).
Leslie's ballot is the infamous butterfly ballot that was used in Palm Beach County in 2000.
After Ann asks him to get back together, Tom calls himself "Nostrathomas". This is a reference to famous French soothsayer Nostradamus.