Joe Biden widened his lead over the rest of the Democratic field, buoyed by a commanding lead among women and black voters, based on a Quinnipiac University poll released Friday.

The former vice president, who took a hit in the polls after a dismal debate performance last month, now leads the pack of more than 20 with 34% of Democrats and independent voters saying they have his vote — a 12-point jump over his July 2 poll numbers.

Biden, 76, leads Massachusetts Sen. Elizabeth Warren, at 15%, Sen. Kamala Harris of California, with 12%, and Vermont Sen. Bernie Sanders at 11%.

Biden had a wider lead among black Democrats, with 53% saying they would vote for the ex-veep over the 8% who back Sanders.

Biden had the support of 34% of Democratic women, compared to 15% for Warren.

The numbers represent a turnaround from Biden’s dip in the polls following the June debates, when he took a tongue-lashing from Harris.

“In the blink of an eye the post-debate surge for Sen. Kamala Harris fades and former Vice President Joseph Biden regains his footing among Democratic presidential contenders,” said Mayor Snow, polling analyst for the Quinnipiac poll.

“Electability remains his strongest pull,” she said. “Across the board, Biden remains by far the Democrat seen as having the best chance of defeating President Trump.”

However, Harris will have another shot on Wednesday, when she and Biden share the stage during the next debate in Detroit.