Sen. Kamala Harris (D-Calif.) told CNN's Jake Tapper on Sunday that officials "need to take a serious look at breaking up Facebook."

Harris, a 2020 presidential candidate, was responding to a question from Tapper about Facebook co-founder Chris Hughes's op-ed last week that called for the social media giant to be broken up.

"I think Facebook has experienced massive growth and has prioritized its growth over the best interest of its consumers," she said on "State of the Union." "There's no question in my mind there needs to be serious regulation and that has not been happening. There needs to be more oversight, that has not been happening."

Harris cited her focus as California's attorney general on consumer privacy and said the ubiquity of Facebook made it essentially a utility - like an electric company - and it should be regulated as one.