What were the three reasons that led to the spanish american war

I couldn't find three reasons sorry but here's what I did find: The reasons for war were many, but there were two immediate ones: America's support the ongoing struggle by Cubans and Filipinos against Spanish rule. - And the mysterious explosion of the battleship U.S.S. Maine in Havana Harbor. Hope this helps at least! =^-^=

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.

c]extended voting rights to african americans