by Patrick Appel
Brendan Nyhan argues that the media often incorrectly "concludes that candidates won or lost because of their tactical choices."
The problem is that any reasonable political tactic chosen by professionals will tend to resonate in favorable political environments and fall flat in unfavorable political environments (compare Bush in '02 to Bush '06, or Obama in '08 to Obama in '09-'10). But that doesn't mean the candidates are succeeding or failing because of the tactics they are using. While strategy certainly can matter on the margin in individual races, aggregate congressional and presidential election outcomes are largely driven by structural factors (the state of the economy, the number of seats held by the president's party, whether it's a midterm or presidential election year, etc.). Tactical success often is a reflection of those structural factors rather than an independent cause.
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