Answer:
General Lee had a strong opposition to seccession from the Union and the rationale to why he chose the Confederates was due to many people at the time being more loyal to their individual states rather than the Union as a whole. In this scenario, General Lee was from Virginia, a state that secceeded from the Union, which led to him siding with the Confederacy.
Explanation:
The reason why the President must seek approval from the senate for most political appointments is to prevent against an "abuse of power", since this is one of the ways in which there are "checks and balances," worked into the federal government.
In what way did the US Constitution differed from the Articles of Confederation? It created a national government having three branches.