Warren making no endorsement decision right away

Elizabeth Warren says she will not be running for president in 2020 but guarantees that she will stay in the fight.

Speaking to reporters Thursday outside her home in Cambridge, Massachusetts, Warren said she'd likely endorse one of the two major candidates left in the race, Joe Biden or Bernie Sanders, but "not today."

"I need some space and I need a little time right now," she said, standing next to her husband, Bruce Mann, and golden retriever, Bailey.

Warren's voice cracked when she talked about meeting so many little girls while campaigning around the country for the past year and knowing they "are going to have to wait four more years," at least, to see a woman in the White House.

The Massachusetts senator was the Democratic presidential primary's last top female candidate. She suspended her campaign Thursday, two days after a disappointing Super Tuesday that included a third-place finish in her home state.

Warren added: "I have no regrets at all. This has been the honor of a lifetime."