Explain the meaning of this cartoon for a reader in 1867.
a. it demonstrated that andrew johnson was an ineffective leader because of his interest in books.
b. it illustrated that andrew johnson's vetoes of legislation he labeled unconstitutional were overridden by congress.
c. it illustrated the need to reform the u. s. constitution because it was too complex for reconstruction.
d. it validated the u. s. constitution as a powerful document that was capable of removing political leaders.

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when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.