In American politics, cross-filing (similar to the concept of electoral fusion) occurs when a candidate runs in the primary election of not only their own party, but also that of one or more other parties,[1] generally in the hope of reducing or eliminating their competition at the general election. It was in effect in California from 1913 to 1959, when it was abolished, and has been used in other states, most significantly in New York and New Hampshire, where it is still in effect.
In New York the main candidates are usually the Democratic and Republican nominees, and the support of various minor parties is demonstrated by winning their nomination as well. For example, Republican nominees often attempt to win the nomination of the Conservative Party of New York as well. One rare exception was in 1944, when New York Congressman Vito Marcantonio was successful in winning both the Republican and Democratic Party primaries, assuring his re-election.[2]
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