Answer:
It would upset the balance of power among the three branches of government, that is why he is voted "not guilty".
Explanation:
Andrew Johnson was the <u>17th president</u> of the United States.
He faced the charges of impeachment during his tenure when the <u>"house of Representatives"</u> passed the resolution against him for<u> "high crime and misdemeanor".</u>
Andrew Johnson was charged with the violation of the <u>"Tenure of office act".</u>
The above mention Act stated that the president <u>could not remove appointed officials without the consent with congress.</u>
Johnson removed the <u>Secretary of war</u> without the consent with congress.
Republicans, fearing that the removal of the president would upset the <u>balance of power</u> among the three branches of government.
Voted "not guilty".