Explaining politics, not polls reexamining macropartisanship with recalibrated nes data

Like all surveys, the American National Election Studies (NES) imperfectly reflects population characteristics. There are wellknown differences between actual and NES-reported turnout rates and between actual and NES-reported presidential vote divisions. This research seeks to determine whether the aggregate misrepresentation of turnout and vote choice affects the aggregate measurement of party identification: macropartisanship. After NES data are reweighted to correct for turnout and vote choice errors, macropartisanship is found to be more stable, to be less sensitive to short-term political conditions, and to have shifted more in the Republican direction in the early 1980s. The strength of partisanship also declined a bit more in the 1970s and rebounded a bit less in recent years than the uncorrected NES data indicate.