The correct answer is: Lincoln would readmit Southern states to the Union on lenient terms.
Lincoln's 10% Plan was viewed as being too lenient on the traitorous Southern States. Lincoln was okay with only 10% of citizens in the traitorous Southern States pledging loyalty while the Radical Republicans wanted the South to be more firmly punished before being allowed back into the Union.
The two executive powers that the constitution delegates to the senate are the power to confirm presidential appointments and the power "advice and give consent on treaties" formulated by the President.
