For as long as I can remember I have looked askance when I hear politicians refer to their adversaries across the partisan divide as their “good friends.”

The once-famous “friendship” between Republican Sen. Lindsey Graham and former Democratic Sen. and Vice President Joseph Biden only reaffirms my skepticism about personal relationships among politicians.

I’ve seen that famous viral video of Sen. Graham tearing up as he describes Biden, saying that if you “can’t like Joe Biden as a person, you’ve got a problem.” He speaks of his enduring friendship with Biden, his politeness and his graciousness.

Well, these days Graham is singing a different tune about his one-time friend. He says now he intends to investigate Joe Biden and his son, Hunter, once the Senate impeachment trial of Donald John Trump concludes.

Graham chairs the Senate Judiciary Committee and I guess he wants to find corruption involving the Biden men, about Hunter’s employment by the Ukraine energy company and Joe Biden’s involvement … whatever it entails.

The former VP has said he doesn’t understand what has gotten into his pal Graham. He says he thought their friendship was thick.

I guess not.

This so-called “friendship” is proving to be as flimsy and see-through as any policy pronouncement that flies out of the mouth of, say, Donald John Trump.