What problems would plague Grant's presidency?

The whole reconstruction of America kind of had a downhill for him.

Explanation:

He  had to put the nation back together and follow in Lincoln's footsteps. He also had to maintain control over the South so they wouldn't do any kind of nonsense with the newly "freed" African American slaves.  

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s the president shall be commander in chief of the army and navy of the united states, and of the militia of the several states, when called into the actual service of the united states; he may require the opinion, in writing, of the principal officer in each of the executive departments. sooo yeahhh

explanation: