"This morning I am officially announcing that I am suspending my campaign for Congress," Ehrlich said in a statement, adding: "While this is not the result I was hoping for, I remain committed to helping the families of Pinellas County, this state, and this country."
Sink, who entered the race after Young's death, quickly grabbed the support of the Democratic Congressional Campaign Committee and the Democratic women's group Emily's List, which had previously supported Ehrlich.
The race for Young's seat is key because it will be held in early 2014 in a swing district. Accordingly, it will be looked to for clues about the 2014 landscape.
The GOP field has yet to shake out. Over the weekend, former St. Petersburg mayor Rick Baker opted not to run, clearing way for his former general counsel, David Jolly. Jolly has the backing of Young's widow, Beverly.
Other potential candidates include former Clearwater mayor Frank Hibbard, former Pinellas county commissioner Neil Brickfield, and current Pinellas county commissioner Karen Seel.
The primary for the special election will be held Jan. 14, with the general election on March 11.