Below is a compilation of independent polls assessing voter preferences in the June 26 Democratic primary for Maryland governor. The April Goucher Poll gauged how Democratic candidates would fare against Republican Gov. Larry Hogan in the Nov. 6 general election.
June 2018
Gonzales
view_headlinePoll: No. 1 issue for Maryland Democrats is 'removing Donald Trump from office'
| Rushern Baker | 25% | |
| Ben Jealous | 22.6% | |
| Richard Madaleno | 9.1% | |
| Kevin Kamenetz and Valerie Ervin~ | 7.1% | |
| Jim Shea | 6.3% | |
| Krish Vignarajah | 5.3% | |
| Alec Ross | 1.8% | |
| Ralph Jaffee | 0.6% | |
| James Jones | 0.2% | |
| Undecided | 22% |
| Ben Jealous | 16% | |
| Rushern Baker | 16% | |
| Valerie Ervin# | 5% | |
| Rich Madaleno | 4% | |
| Jim Shea | 4% | |
| Krish Vignarajah | 4% | |
| Alec Ross | 1% | |
| Someone else | 6% | |
| Undecided | 44% |
#Suspended campaign on June 13
From May 29-June 6 landline and cellphone poll of likely Democratic voters. Margin of error: ±4.4% View the full results.
Washington Post-University of Maryland
| Ben Jealous | 21% | |
| Rushern Baker | 16% | |
| Valerie Ervin# | 8% | |
| Rich Madaleno | 6% | |
| Jim Shea | 4% | |
| Krish Vignarajah | 4% | |
| Alec Ross | 2% | |
| No opinion/other | 39% |
#Suspended campaign on June 13
From May 29-June 3 landline and cellphone poll of likely Democratic voters. Margin of error: ±6% View the full results and methodology.
April 2018
Goucher Poll
view_headlinePoll: Republican Maryland Gov. Larry Hogan is favored over Democratic candidates
| Larry Hogan | 44% | |
| Rushern Baker | 31% | |
| Undecided | 22% |
| Larry Hogan | 44% | |
| Ben Jealous | 31% | |
| Undecided | 22% |
| Larry Hogan | 45% | |
| Kevin Kamenetz^ | 28% | |
| Undecided | 23% |
| Larry Hogan | 45% | |
| Rich Madaleno | 27% | |
| Undecided | 26% |
| Larry Hogan | 46% | |
| Alec Ross | 26% | |
| Undecided | 26% |
| Larry Hogan | 47% | |
| Jim Shea | 27% | |
| Undecided | 25% |
| Larry Hogan | 45% | |
| Krish Vignarajah | 25% | |
| Undecided | 27% |
^Kevin Kamenetz died of cardiac arrest on May 10, 2018. His former running mate, Valerie Ervin, ran in his place before suspending her campaign on June 13.
From April 14-19 landline and cellphone poll of Maryland adults. Margin of error: ±3.9% View the full results and methodology.
February 2018
Mason-Dixon
| Rushern Baker | 26% | |
| Kevin Kamenetz^ | 15% | |
| Ben Jealous | 14% | |
| Rich Madaleno | 4% | |
| Krish Vignarajah | 3% | |
| Jim Shea | 3% | |
| Alec Ross | 2% | |
| Ralph Jaffe | 1% | |
| Undecided | 32% |
^Kevin Kamenetz died of cardiac arrest on May 10, 2018. His former running mate, Valerie Ervin, ran in his place before suspending her campaign on June 13.
From Feb. 20-24 landline and cellphone poll of likely Democratic voters. Margin of error: ±4.5% View the full results and methodology.
Goucher Poll
view_headlineDemocratic race for governor is wide open
| Rushern Baker | 19% | |
| Kevin Kamenetz^ | 12% | |
| Ben Jealous | 10% | |
| Rich Madaleno | 2% | |
| Alec Ross | 3% | |
| Jim Shea | 2% | |
| Krish Vignarajah | 2% | |
| Ralph Jaffe | 1% | |
| Other candidate | 1% | |
| Undecided | 47% |
^Kevin Kamenetz died of cardiac arrest on May 10, 2018. His former running mate, Valerie Ervin, ran in his place before suspending her campaign on June 13.
From Feb. 12-18 landline and cellphone poll of likely Democratic voters. Margin of error: ±4.8% View the full results and methodology.
January 2018
Gonzales
view_headlinePoll: Baker leads Democratic primary field in wide open race for governor
| Rushern Baker | 24% | |
| Kevin Kamenetz^ | 14.2% | |
| Ben Jealous | 13.8% | |
| Maya Rockeymoore Cummings* | 5.8% | |
| Richard Madaleno | 4.8% | |
| Krish Vignarajah | 1.6% | |
| Alec Ross | 1.4% | |
| Jim Shea | 1% | |
| Ralph Jaffee | 0.4% | |
| Undecided | 33% |
| Rushern Baker | 13% | |
| Doug Gansler+ | 11% | |
| Kevin Kamenetz^ | 8% | |
| Maya Rockeymoore Cummings | 8% | |
| Ben Jealous | 6% | |
| Rich Madaleno | 2% | |
| Jim Shea | 2% | |
| Alec Ross | 1% | |
| Krish Vignarajah | 1% | |
| Other candidate | 2% | |
| Undecided | 44% |
+Never entered race
^Kevin Kamenetz died of cardiac arrest on May 10, 2018. His former running mate, Valerie Ervin, ran in his place before suspending her campaign on June 13.
From Sept. 14-18 landline and cellphone poll of likely Democratic voters. Margin of error: ±5.4% View the full results and methodology.