Hillary Clinton: Stop using children at campaign events to ask easy questions & serving as perfect photo ops.
Donald Trump & Bernie Sanders: Start writing more cohesive campaign speeches that don’t include afterthoughts such as “and by the way..” following each sentence.
Marco Rubio: Stop saying “When I’m President” because you most likely won’t be.
Ted Cruz: Either clearly define what is the ambiguous “Washington Cartel” or stop using this term altogether.