By Juana Summers, The Associated Press

Sen. Kamala Harris of California says she raised $12 million in the past three months — roughly equal to what she collected in the first fundraising quarter, which ended March 31.

Her fundraising total is significantly less than the $24.8 million raised by Mayor Pete Buttigieg of South Bend, Ind.

Democratic presidential candidate Sen. Kamala Harris, D-Calif., listens to questions after the Democratic primary debate hosted by NBC News at the Adrienne Arsht Center for the Performing Art, Thursday, June 27, 2019, in Miami. (AP Photo/Brynn Anderson)

Harris also raised less than former Vice President Joe Biden and Vermont Sen. Bernie Sanders.

Her campaign said July 5 that of the money she raised this quarter, half a million dollars came from her online store.

The campaign is pointing to sales of a shirt seeking to fundraise on the much-watched moment from the first Democratic presidential debate, when Biden struggled to respond to Harris’ tough questions about his past positions on public school busing.