The Post quotes Adam Green, co-founder of the Progressive Change Campaign Committee: "The best way for Democrats to maximize gains in 2018 - especially in purple and red districts - is to harness the power of the resistance and field candidates who proudly challenge power".
Later on Twitter, Ossoffwrote that for months the district "has been a beacon of hope for people across the country".
Handel won 51.9% of the vote compared to Ossoff's 48.1%, according to The New York Times, and will assume the House of Representatives seat vacated by Health and Human Services Secretary Tom Price.
Handel's handy victory over Democrat Jon Ossoff follows GOP special electionwins in Kansas, Montana and SC.
Trump celebrated on Twitter on Tuesday night.
"This is a heavily Republican district", Crowley said. Republicans spent $12 million and Democrats spent $12.2 million, according to sources tracking the air war.
Price himself was easily reelected several times, but Trump himself carried the district over Hillary Clinton by less than two percentage points last November, fueling Democratic hopes they could flip the district.
Handel said at her victory rally that she knew it was going to "require all hands on deck" for Republicans to hold on to the district.
Ossoff, a former documentary filmmaker and congressional aide, has become a symbol of the anti-Trump movement.
"We showed the world that in places where no one thought it was even possible we could fight (that) we could fight", Ossoff told supporters.
Republicans - make a note of this as harbinger of the major theme you'll hear in next year's midterm elections cross-country - made the election about "San Francisco values", as in Nancy Pelosi, the aged Democrat House minority leader. But it wasn't what Democrats who pumped $23 million into Ossoff's campaign so desperately craved: "A win". A loss could have meant that Republicans who are sick of Congress retire rather than run for reelection and risk losing.
But Handel's win is expected to energize Republican lawmakers in Washington as they seek to push forward with their repeal of Barack Obama's health care plan as well as tax law overhauls. Handel supported the GOP House version, the American Health Care Act, while Ossoff opposed it.