Donald Trump has the temperament of a right-wing radio talk show host — bombastic, bullying, crude and insulting. It's a style that has long been influential in the Republican Party. Now it's taking over.

Talk radio is an ideal medium for conservatives. A few liberals have tried it, but they're not very good. Liberal talk radio is National Public Radio and its flagship show, "All Things Considered." Trump does not consider all things. He considers what he damn well wants to consider.

What Trump has is attitude. After all, Trump's signature line from his reality TV show was "You're fired!"