This Texas story says that an IVR poll has found that 17% of the voters who say they plan to vote for Hillary Clinton in the Democratic primary on March 4, also say they expect to vote for the Republican presidential nominee in November. The same poll finds 22% of the voters who say they will vote for Barack Obama on March 4 expect to vote for the Republican nominee in November.
This is evidence that “raiding” does occur. “Raiding” is the intrusion of voters into party primaries who are not, in their hearts, loyal to the party holding that primary. For years, political scientists have fought over whether “raiding” really occurs in open primaries.
The February 25 New York Times has this op-ed by Geraldine Ferraro, supporting the idea that superdelegates ought to settle the identity of the Democratic presidential nominee. Ferraro’s justification is that Democratic presidential primaries get raided anyway, and therefore the presidential primaries should not be the determining factor in whom the party nominates.