According to an analysis by Ms. Abrams’s voting rights group, Fair Fight, that was obtained by The New York Times, there is reason to believe that Georgia’s electorate has changed even since 2018, when Ms. Abrams fell short by about 55,000 votes amid widespread allegations of voter suppression.

More than 700,000 Georgians who were not eligible to vote in 2018 have now registered, with about 1,250 joining the electorate every day. Democrats believe this group, which is more diverse and younger than typical Georgia voters, is much more likely to back Democrats.

A disproportionate number of these new voters are also new to Georgia, as the growth of certain industries — particularly television and film production — has brought an influx of new residents to cities like Atlanta.

This has enabled Democrats to embrace a new strategy for statewide campaigns. Gone are those who tried to toe a careful ideological line, caving to the conservative fundamentals of the state in a way that neither persuaded moderates nor inspired the base.