Answer:
the cost of government spending
Explanation:
Both want a change from being ruled by an absolute ruler, both have economic instability from war debt, both have social inequality. And also, both started because of enlightenment ideas.
Lincolns reconstruction plan was to offer the south and all former confederate's amenity or pardon. His plan also stated that southern states if having a 10% vote from it's citizens would be reimbursed into the union and a new constitution written for that state. Unlike the radical Republicans Reconstruction plan. Lincoln wanted them to rejoin the union as quickly as possible. johnsons plan took up the threads where lincoln took off. Johnson's plan was similar to lincolns but pleased congress and the radical republicans because President Johnson started sofisticating land from the wealthy aristrocratic Southerners. Hope that helped.