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About this Poll
Public Policy Polling surveyed 879 Maryland voters, including 492 likely Democratic
primary voters and 310 likely Republican primary voters between April 15th and 17th.
The margin of error is +/-3.3% overall, +/-4.4% for the Democrats and +/-5.7% for the
Republicans. 80% of participants, selected through a list based sample, responded via the
phone, while 20% of respondents who did not have landlines conducted the survey over
the internet through an opt-in internet panel.