“…The outcome variable, [Count] it , is equal to the total number of thirdparty and independent candidates running for state house, state senate, or gubernatorial elections that occurred between 1980 and 2010. To count the number of candidates for the state house and senate elections, we first identify the total number of all candidates who ran in a district, and who were not affiliated with the Democratic or Republican party, by using the candidate-level database of State Legislative Election Returns, 1967-2010(Klarner et al 2013. 4 Here, we include all minor party candidate labels (for example, Greens, Libertarians, Right to Life, and so on) and independent candidates.…”