It is among the most famous phrases in presidential history: “ The buck stops here.” Except with Donald Trump, it almost never does.

Concerns about a weak economy and still-high inflation? His predecessor, Joe Biden, saddled him with that, he says, even though the Democrat has been out of office for 18-plus months and despite Trump once promising an immediate turnaround.

The problem-plagued revamp of the Lincoln Memorial Reflecting Pool? That was marred by vandalism, the Republican president insists, even though the office of a prosecutor he put in the job has said the damage was due to shoddy workmanship.

The increasingly unpopular war in Iran that has kept oil prices high, Trump’s approval rating low and sent shock waves through the global economy? Actually, this was Trump making up for timid earlier presidents who, he argues, squandered nearly 50 years of opportunities to curb Tehran’s nuclear ambitions.