The apartment that Dr. Lance Sweets and Daisy Wick were about to move into is the same as the one Ted Mosby and his friends live in in How I Met Your Mother (2005).
In the opening scene, Brennan mentions Donald Trump considering a run for office. Four years later, in 2016, Trump became President-elect of the United States, serving as President from 2017-21.
With running for the presidency being a theme of the episode, small references were placed into the episode. When Dr. Hodgins and Angela are looking at the map of the area surrounding the fairgrounds, the town the fairgrounds are located in is named Romney, with Mitt Romney being a presidential candidate in the election happening at the time of the episode airing.