Abrams already had the endorsement of one Georgia congressman, Hank Johnson of Decatur. Former Gov. Roy Barnes has endorsed Evans.
Lewis' announcement may have a precedent. In the 2008 presidential contest, Lewis had already pledged himself to Hillary Clinton when Barack Obama's campaign began to take off. Ultimately, extreme pressure from black voters in the Fifth District persuaded Lewis to switch sides.
Abrams is already making an effort to make her campaign a cause celebre. From the Washington Post:
"Get in Formation," a campaign launched this week by three black political action committees, hopes to recruit more women like Peoples to pledge their personal and financial capital to help Abrams in her history-making quest. The effort will primarily be run online via a website and social media.
The road ahead for either Democrat will be tough in Georgia, which has been led by Republicans since 2002. Four GOP candidates are in the race so far: Lt. Gov. Casey Cagle, Secretary of State Brian Kemp and state Sens. Hunter Hill and Michael Williams.
Read more: Georgia 2018: Who is running to be Georgia's next governor