Donald Trump did not find Andrew Jackson; Andrew Jackson found him. When historians and pundits began to compare Trump the populist with Jackson the populist, the candidate took notice. Moreover, Jackson was a favorite of Steve Bannon, Trump’s political adviser and 2016 campaign manager. By the time Trump entered the White House in late January 2017, an 1835 Ralph E.W. Earle portrait of Andrew Jackson was hanging in the Oval Office.
As of January 20, 2021, the Ralph Earle portrait of Jackson is gone. Joe Biden replaced it with a portrait of Benjamin Franklin.
Here is Sarah Cascone at Artnet News:
Biden’s team swapped a portrait of Andrew Jackson—a populist president revered by Donald Trump—for one of Founding Father and inventor Benjamin Franklin, a switch that has been seen as symbolic of Biden’s reverence for science.
The Franklin painting, a 1785 canvas by Joseph Siffred Duplessis, was actually already on view in the Oval Office during Trump’s tenure, but is now in a more prominent position next to the Resolute Desk. The work is on loan from the Smithsonian’s National Portrait Gallery, along with a Martin Luther King Jr. bust by Charles Alston that has been at the White House since the year 2000 and is now on display on the mantlepiece.