How did the radical republicans feel about Lincoln's Reconstruction plan?

Abraham Lincoln's ultimate goal during the Civil War was to reunite the country. He felt that if the country was against itself, it would eventually crumble. He wanted Reconstruction, or the re-building of the country, to be as easy as possible (without slavery and with peace).

The radical Republicans in Congress at that time wanted to punish the South at all costs; they had been traitors, and the Republicans felt that if they wanted to be readmitted into the Union, they needed to beg on hands and knees. Lincoln saw this, and it caused an abundance of tension and hostility towards the North. He wanted a very lenient Reconstruction process so that the Southerners would be more willing to compromise, and actually want to be readmitted. He thought that this way, the country would be able to rebuild more peacefully and successfully. Otherwise, the South would still harbor the same resentment they had before the war, and the country, in effect, wouldn't have solved its problems, and the war would have been for nothing.