ret the closing of the frontier and the anniversary of Columbus' voyage to America? How did political campaigning change in this period of US history?...

How did American historians interpret the closing of the frontier and the anniversary of Columbus' voyage to America?

How did political campaigning change in this period of US history? What role did money play in electoral politics- What role does it play today?

What role did the ongoing problems of racism play in the changes made to ballots and electioneering? How did populism address issues or race and racism?