Chris Matthews is a well-known liberal commentator with a reputation of talking over anyone he’s interviewing.

When the MSNBC pundit gets his dander up, he’s quite capable of delivering profound analysis of all things political.

Consider this: Matthews is incensed at Donald J. Trump’s assertion that Ted Cruz’s father somehow was complicit in the assassination of President John F. Kennedy.

Matthews’ point? It is that Trump has crossed yet another boundary of good taste as he campaigns for the Republican Party presidential nomination. This time he has invoked a tragic memory that has burned itself indelibly into the minds of Americans old enough to remember the Nov. 22, 1963 murder of a president.

And for what purpose? Matthews called it cheap politics. Trump has cheapened Americans’ heartbreak by using the JFK murder as a political cudgel with which he seeks to beat a political opponent.

Trump remembers that day, just like the rest of us who were old enough to recall it.

I have to agree wholeheartedly with Matthews’ belief that Trump once again has displayed an utter and absolute lack of respect for historical context.

Matthews also believes Trump’s preposterous assertion about Cruz’s father’s relationship with Lee Harvey Oswald is going to “matter.”

I’m not sure about that.

I do believe, though, that Trump lacks a fundamental trait necessary to become the head of state of the world’s greatest nation.

It is decency.