Bangladesh, Jan. 20 -- Many employers and employees over the past several years have pointed to experience as the reason they oppose a $15 minimum wage, which forms the core of Joe Biden's proposed $1.9 trillion economic stimulus and COVID-19 relief plan.

Last month, Jamie Richardson, vice president of the White Castle hamburger chain, told CNBC's "Closing Bell" that raising the federal minimum wage from the current $7.25 an hour would forced the closure of nearly half of his company's locations and lay off thousands of workers.

"To more than double the federally mandated starting wage wouldn't be bad for White Castle, it would be absolutely catastrophic," he said.

More than 200 of White Castle's 406 locations across the United States ...