economic ideas, starting with taxes. >> i am proposing an across-the- board income tax reduction, especially for middle-incomee- americans. this will lead to millions of new and 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. >> ifill: but throughout his scripted remarks, trump was regularly interrupted-- at least a dozen times-- by hecklers.