CNN

If elected this fall, Kamala Harris and Doug Emhoff will usher in many “firsts” in American history. Among them: The first White House couple to have worked at McDonald’s.

With that line on their resumes, Harris and Emhoff share a link to 1 in 8 Americans who have worked at McDonald’s – 13% of the country – according to the company.

Broadcasting that shared history, as they have this week at the Democratic National Convention, has become a powerful way for Democrats to burnish their working-class credentials and, without even mentioning their rivals’ names, aim to make former President Donald Trump and the Republican ticket appear elitist and out of touch.

In several speeches and campaign ads, Democrats have been eager to remind voters that Harris, raised by a single mom in a middle class neighborhood, had a summer job slinging fries to help her pay for college.