Donald J. Trump was always oh, so quick to denigrate the economic successes of Barack H. Obama.

But … wait! Now it appears that with the nation’s economy continuing to rock along, he is seeking to take some — or most — of the credit for himself.

Politico reports that the president, faced with low poll ratings despite a brisk economic recovery, is staking more of his political fortune on the continuing spike in economic activity.

Thus, the success he refused to acknowledge during President Obama’s two terms in office is now becoming an opportunity for him to seize during his own time in the White House.

It’s almost laughable. No, actually it is laughable.

Trump derided the monthly jobs boost recorded virtually throughout Obama’s terms in office. He used to contend the job growth was phony; the Labor Department cooked up the numbers, he said, to make the president look good.

Now that he’s on the watch, the job numbers are like the Gospels, according to Trump. Which is it, Mr. President? Are they phony or are they holy?

Trump will deserve credit if his economic policies continue to produce healthy job and wage growth. He’ll deserve the credit in due course.

However, he shouldn’t try to scarf up the credit that rightfully belongs to the momentum built by his presidential predecessor and preceding Congresses long before he declared his presidential candidacy.