Walmart wages are so low that many of its workers rely on food stamps and other government aid programs to fulfill their basic needs, a reality that could cost taxpayers as much as $900,000 at just one Walmart Supercenter in Wisconsin, according to a study released by Congressional Democrats on Thursday.

Though the study assumes that most workers who qualify for the public assistance programs do take advantage of them, it injects a potent data point into a national debate about the minimum wage at a time when many Walmart and fast food workers are mounting strikes in pursuit of higher wages.

Read more