Why did Congressional leaders dislike the choices of delegates to Congress from the new state governments?

Question

Many of the men had been high-ranking officers in the Union armies or men of position in the Union government.

Many of the men had been low-ranking officers in the Confederate armies or men of position in the Confederate government.

Many of the men had been low-ranking officers in the Union armies or men of position in the Union government.

Many of the men had been high-ranking officers in the Confederate armies or men of position in the Confederate government.

Answer 1

Many of the men had been high-ranking officers in the Confederate armies or men of position in the Confederate government.

Congressional leaders disliked these choices because they were seen as former enemies who had fought against the Union during the Civil War. They were concerned that these delegates would not be loyal to the United States and would instead work to undermine the goals and principles of the Union government.