If you believe Close Air Support is better served by the A-10 than other platforms, contact your Senator and Congressman. Ask them to support S.1764 and HR.3657.
They actually have a significant number of signatories to it; about 20. More is better. This will go before Congress in the next month. Congress will debate and want to know why retiring the A-10 is the best path forward.
The Air Force plan is to replace the A-10 units with Block 40 F-16s. A good airplane, but not as good for danger-close CAS as the A-10.
I have knowledge of a firefight last year (Afghanistan) from two of my former T-38 students. They saved an entire convoy, and killed 18 combatants, in a danger-close scenario.
How close? Hand-grenade range. They expended 2200 rounds of 30mm, and three Mk-82s.
Two F-16s and a Predator were orbiting overhead. They were unable to expend, as the 20mm in the F-16 has too wide a dispersal pattern, and the Pred could not employ Hellfires for the same reason.
Every American in the convoy lived. Not so for the bad guys.
If you believe that Close Air Support will not be necessary in future conflicts, then carry on. If you believe a viable CAS alternative should be tested and fielded before the A-10 is retired, I urge you to write your elected officials.