the wrldorld's biggest economy. monday he offered details on the changes he would make if he wins the presidency. here is some of what trump had to say. >> i am proposing an across the board income tax reduction for middle-income americans. this will lead to millions of new, really good paying jobs. the rich will pay their fair share. but no one will pay so much that it destroys jobs, or undermines our ability, as a nation, to compete. tax simplification will be a