Pachacuti was the king of Cusco. He would start the conquests capturing territory to the north around 1493. His son, Tupac Inca Yupanqui, would continue the conquests in 1471, after his father's death. He would conquer the territory to the south.
Many Americans were against getting involved in a War that was being fought in Europe though begrudgingly Americans became aware there was danger on the High Seas as Atlantic waters became host to submarines while warships dueled in the waters of the South Pacific and Atlantic.
Many Americans, particularly the Wobbles, the IWW International Workers of World (rightly) argued that the main reason for fighting would be to profit by various means profits that would mostly land in the pockets of International Bankers and Industrialist, the Halliburton of the times.
The Ku Klux Klan (KKK) gathered huge support in the mid 1920s but quickly died off after that. they still exist today, but are a small group.
Assuming you're referring to Theodore Roosevelt, one of the most successful things he did in terms of regulating big business was the "break up the trusts,"--in that he took to court companies that were suspected of colluding with other firms and forming monopolies.
I believe that one main reason why is 1. Woodrow Wilson (Who was a democrat) he believed that he did not need to bring anyone from the Senate, which was a Republican :) (I hope this helps! I read this from the internet, I was gonna post it to you but I dont know if its against the rules of Brainly :) If not let me know, and ill send the link)