For impeachment proceeding to begin a president has to accused of

D. a crime.

Explanation:

According to another source, the correct options that come with this question are:

A. lying.

B. going to war.

C. not listening to Congress.

D. a crime.

For impeachment proceedings to take place, a president has to be accused of having committed a crime. Impeachment is the process by which the lower house brings charges against an officer of government, in this case the president. The only possible penalties due to impeachment are removal from office or disqualification to enjoy any office of honor, trust or profit in the United States.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.