The state's last Democratic senator, Zell Miller, became so conservative that he gave a rousing speech at the 2004 Republican National Convention endorsing the re-election of President George W Bush.
These victories could have meaningful implications for how President-elect Joe Biden will govern in his first two years in office, as control of both the House and the Senate increases his ability to get his legislation passed through Congress.
"Budget reconciliation offers Schumer and the Democrats the chance to enact meaningful and significant policies early in the Biden presidency", said Matt House, a consultant and former Schumer aide.
"This campaign has been about health and jobs and justice for the people of this state - for all the people of this state", Ossoff said in a speech broadcast on social media Wednesday morning.
There's little hope of realizing Biden's original vision for a $2 trillion climate plan with such a narrow Senate edge. The Democrats will control the Senate because as Vice President-elect Kamala Harris will have the tie-breaking vote as the president of the upper chamber.
That means major legislation probably will not advance without at least some Republican support.
But even making changes on simple majority votes in the evenly split Senate "is an exercise in herding cats, with each Democratic senator having effective veto power", he added.
Biden will also have to cope with higher expectations after Georgia's results than if he had faced a Republican-controlled Senate.
As far as the worldwide agenda is concerned, Biden will be in a better position to be engaged in some important aspects like Paris Climate Deal, Iran Nuclear Agreement, Middle East peace process. Georgia and the rest of the former slave south have long suppressed the vote of African Americans, contributing to the defeat of Stacy Abrams when she ran for governor two years ago.
Rachel Kyte, a former United Nations special representative on energy and dean of the Fletcher School for Law and Diplomacy at Tufts University in MA, said McCarthy and other Biden cabinet picks excel at talking about the need for climate-friendly reforms "in language ordinary people can understand". The majorities could allow Biden to pass larger spending bills.
Biden, who represented DE in the Senate for 36 years, said he was aware of the challenges. Bernie Sanders and Maine Sen. Congressional Republicans dug in their heels last fall against putting more COVID-19 relief toward state and local government affected by the pandemic.
State Sen. Jen Jordan, a Democrat who represents parts of Atlanta and suburbs that have swung rapidly to her party, said the internal Republican jousting has obscured Kemp's other problems.
"The difference between the odds of passage of major climate legislation under a Senate led by Chuck Schumer and a Senate led by Mitch McConnell is vast", said Jamal Raad, a former Senate aide who co-founded the climate-focused group Evergreen Action.
Others, though, say now is the time to put major policy initiatives above bipartisanship, especially in an era of such deep political divisions.
"We sure did not take the most direct path to get here, but here we are", he said, pumping his fists and flashing a smile. "We do best practice here", he said.
"I don't know who could be in favor of a jungle primary anymore", said Ralston, R-Blue Ridge.