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About this Poll

Results are based on a survey of 419 likely Democratic primary voters and 307 likely Republican primary voters done by OpinionWorks of Annapolis for The Baltimore Sun and the University of Baltimore's College of Public Affairs and Schaefer Center for Public Policy. The survey was conducted by telephone, both land-based and cellular, by trained interviewers from Nov. 13 to Nov. 17. Voters were randomly selected for interviews from a voter file provided by the State Board of Elections.

The margin of error for the Democratic primary is +/- 4.8 percentage points. The margin of error for the Republican primary is +/- 5.6 percentage points.