Six Democrats filed for delegate and, in the Democratic primary election held on September 14, Cullison placed second, surpassed only by incumbent Ben Kramer.
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Incumbents Roger Manno and Henry B. Heller had decided against seeking reelection, creating two open seats in the 19th.
Since 2011, the three-member delegation consists of incumbents Ben Kramer and newcomers Sam Arora and Bonnie Cullison.
Bonnie Raitt | Bonnie Tyler | Bonnie and Clyde | Bonnie Pink | Bonnie 'Prince' Billy | Bonnie Langford | Bonnie Bramlett | Bonnie Somerville | Bonnie Lyons | Bonnie Hunt | Bonnie and Terry Turner | Bonnie Scotland | Bonnie Koloc | Bonnie and Clyde (film) | My Bonnie Lies over the Ocean | Bonnie Wright | Bonnie Rideout | Bonnie McKee | Bonnie Cullison | Bonnie Cashin | Bonnie Burton | The Bonnie Blue Flag | Bonnie Soper | Bonnie Prudden | Bonnie "Prince" Billy | Bonnie Lou | Bonnie Honig | Bonnie Dundee | Bonnie Blue Flag | Bonnie Blair |