[2][3] Before attending law school, Demissie started his political career working on John Kerry's 2004 presidential campaign.
[2][4] He both worked in Iowa and served as its Georgia field director at points in the campaign.
[1][3] During the 2008 United States presidential election Demissie first worked on Hillary Clinton's campaign in the Democratic primaries.
[2] This included David Chiu's unsuccessful campaign in the 2011 San Francisco mayoral election.
[6] In February 2021, Demissie and a number of other Democratic strategist launched the group Building Back Together, planning to run ads promoting the agenda of the Biden administration.