Sen. Bernie Sanders (I., Vt.) said Tuesday evening that sticking to progressive policies on economic issues will help Vice President Kamala Harris and her running mate Minnesota Gov. Tim Walz win "pretty big" in November.

"I think to the degree that the vice president and the governor can stay focused on economic issues that benefit working people, demand that the billionaire class are paying their fair share of taxes—you know what? I think they’re going to not only win. I think they have a chance to win pretty big," Sanders said on CNN, shortly after Harris announced Walz will join her on the Democratic ticket.

The Democratic socialist’s advice to the Harris-Walz campaign comes amid mounting scrutiny over Harris’s economic record as vice president following Monday’s stock market plunge, with even Democratic strategists worrying that the market upheaval and fears of an imminent U.S. recession will be a "tremendously huge problem" for Harris.