A challenge that modern presidents face is leading their political party. issuing executive orders. recognizing foreign nations. granting pardons.

A challenge that most president face is leading their political parties.

The modern presidents even though they are the head of the government may not be the ones heading their political parties.

The political parties are the body through which government officials run for office. It is the platform the president ran for office. This party may be under the power of another person who heads it.

Therefore the challenge that most president face is leading their political parties.

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A) leading their political party

Explanation:

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.