Is it really and truly the business of the Senate minority leader to comment on the attendance record of one of his colleagues?

Well, yes it is.

Harry Reid is a Nevada Democrat; Marco Rubio is a Florida Republican. Reid said this week that Rubio ought to quit his Senate seat if he’s going to keep running for president of the United States.

Why does it matter to Reid?

Well, it matters to Reid because it ought to matter to all Americans. Senator are federal employees. They get paid $174,000 annually from the federal Treasury, into which we all contribute with our tax money.

Rubio has indicated he doesn’t much like serving in the Senate. It’s too, um, tedious for the young man. He wants to become the Leader of the Free World, to make things happen in a hurry. He’s not seeking re-election to the Senate in 2016.

Reid’s call is on point, as Rubio keep racking up no-shows on Senate votes.

A newspaper in Rubio’s home state, the Fort Lauderdale Sun-Sentinel, has called on Rubio to quit. He’s ripping off the state’s taxpayers and his constituents, the Sun-Sentinel said. And this is a paper that endorsed Rubio when he ran for the office in 2010.

Let’s be clear: Rubio isn’t the first rookie senator to take a pass on doing his day job while looking for a better-paying public service gig. Sen. Barack Obama did the same thing in 2007-2008 when he ran for president. Should he have quit his Senate seat when he ran for the White House? Yeah, probably. But that’s all water over the dam now.

What’s on the table now is whether Marco Rubio should keep collecting that fat — taxpayer-subsidized — salary without doing much of the work that’s required of him.

Hit the road, Sen. Rubio. Campaign for president all you want, but do it on your own time … not ours.