At some point near the end of Donald J. Trump’s current term as president, his protocol staff will likely schedule an appearance by his immediate predecessor, Barack Obama, and the former president’s wife, Michelle.

It’s been a custom for many years. The former first couple returns to the White House to unveil their official portraits. The president’s portrait hangs next to other presidents; the first lady’s portrait hangs in a gallery that includes her predecessors.

I remember watching when President Obama and Mrs. Obama welcomed George W. and Laura Bush back to the White House in 2012. It was a heart-warming ceremony, with all four — the current and former first couples — exchanging quips and remembrances of their time in the White House.

Is it possible for the Obamas to return to the White House at the invitation of Donald and Melania Trump? Can the former president set aside the astonishing rhetoric that the current president hurled at him? We have the on-going lie that Trump kept alive about Obama’s place of birth; then we have the defamatory accusation from Trump that Obama “ordered the wiretap” of the president-elect’s campaign office.

Oh, and how about the comments that Michelle Obama delivered in the wake of that ghastly “Access Hollywood” video in which Trump admitted to groping women and grabbing them by their private area?

I can just imagine how, um, tense the next portrait-unveiling is going to be when — or if — it occurs.