Published online by Cambridge University Press: 14 April 2014
1. Presidential Election Results by Congressional District, prepared by POLIDATA for the Cook Political Report, April 2013.
3. “Parallel Universes,” David Wasserman, National Journal, December 15, 2012. http://www.nationaljournal.com/member/magazine/why-republicans-have-a-lock-on-the-house-20121213?page=1
4. Vital Statistics on Congress, Table 2–19: Party-Line Voting in Presidential and Congressional Elections, 1956–2010.
5. Vital Statistics on Congress, Table 2–16: Ticket Splitting between Presidential and House Candidates, 1900–2012.
6. Vital Statistics on Congress, Tables 3–2 to 3–14: Campaign Finance in Congressional Elections.