Democrats, who control roughly one-third of the votes in both the Georgia House and Senate, have criticized Cagle and other Republicans.
Four of Cagle's Republican rivals in the 2018 governor's race say they also oppose any tax breaks for Delta since the Atlanta-based airline announced it would no longer offer discounted rates for NRA members flying to the group's conventions.
The move to delete the tax exemption comes after Delta - which is based in Atlanta - joined a growing number of companies that have sought to distance themselves from the NRA since the deadly shooting at a high school in Parkland, Fla.
The sunny salutation was in response to the Georgia Legislature's move on Monday to strip Delta of some $50 million in tax credits, which was in response to Delta cutting its ties to the National Rifle Association.
"Corporations can not attack conservatives and expect us not to fight back", Cagle wrote.
Georgia's lieutenant governor took to the Fox News Channel to defend his controversial threat to block a proposed sales tax exemption on jet fuel unless Delta Air Lines restores the travel discount it had offered to members of the National Rifle Association.
The amendment was presented by the governor's floor leader.
She also says Cagle's campaign for governor could also benefit.
Delta Airlines and the Hartsfield-Jackson Atlanta International Airport are cornerstones of the regional economy in Georgia.
Cagle's spokesperson told CBS46 the lieutenant governor "does not have time to respond to every fringe or irrational liberal political comment".
Gov. Nathan Deal, serving his final year in office, broke his silence on the controversy during a news conference with an apparent jab at candidates running to succeed him.
"If we wish rto remain the No. 1 state in the nation to do business and remain a competitive hub for global commerce, we need to address the concerns of everyone in a dignified manner and with a maturity our people deserve", Deal said. Jen Jordan, an Atlanta Democrat.
On "Fox & Friends" Wednesday, Cagle scoffed at the notion that Delta, which recently signed a 20-year lease extension with Atlanta's airport, would move to NY.