Jessica Mackler is a Democratic Party strategist, political consultant, and president of American Bridge 21st Century Foundation, a 501(c)(4) opposition research group created by Democratic operative David Brock to attack Republican politicians. American Bridge 21st Century Foundation is aligned with American Bridge 21st Century, a PAC whose “trackers” record Republican politicians in an effort to collect gaffes and faux-pas for their Democratic opponents. Mackler is also president of the PAC. From 2013 to 2015, Mackler served as campaign director and chief operating officer of the PAC.
She is currently director of independent expenditures for the Democratic Congressional Campaign Committee (DCCC).
Mackler has managed the campaigns of a number of prominent Democratic Party politicians, including former Rep. Shelley Berkley’s 2012 campaign for the U.S. Senate seat in Nevada and former Rep. Frank Kratovil’s 2010 congressional race. Mackler has also worked as a political consultant to a number of left-wing groups, including American Rights at Work, a labor union-backed advocacy organization known for championing its Employee Free Choice Act campaign (known popularly as the “card-check bill.”) From 2001 to 2005, she served as a researcher and then as deputy research director for the Democratic Party supporter EMILY’s List.