The ad was rotated into an earlier buy of about $760,000 that ends May 20. It will also be part of a new significant statewide buy that will go beyond Saturday. Warren has had a substantial presence on Massachusetts TV in recent weeks.
Meanwhile, she has struggled to turn the page from a weeks-long controversy about her identifying as a Native American intermittently during her professional career.
Warren will face Sen. Scott Brown (R) in a tossup race this November.
“Big banks, institutions, Wall Street — she’s not afraid of anybody,” the woman says in the ad.