The mayor of South Bend, Indiana, hit the 25 p.c mark - a 16-point climb since September that put him nearly 10 proportion factors away from his foremost rivals.
Buttigieg has the support of 25 percent of likely participants in the February 3 Iowa caucuses, up 16 percentage points from September, the Des Moines Register/CNN/Mediacom Iowa poll showed. Several other lower-polling candidates, including former Massachusetts Gov. Deval Patrick, who just entered the race Thursday, will address delegates in the morning.
In the last five polls Buttigieg, Warren, Sanders and Biden have held the top four positions, and have been the only candidates to score in double-digits.
Sanders has picked 4 percentage factors up because that stretch.
A New York Times/Sienna poll released earlier this month also showed Buttigieg's support surging in Iowa, but still behind Warren and Sanders.
Even as she continued to praise Medicare for All, though, Friday's announcement represented a move toward the political middle on an issue that has been one of the most important to voters in the Democratic primary - which begins February 3 in Iowa. Asked about the difference between her plan and Buttigieg's, Warren said that "mine is about actually giving people Medicare for All that is going to be full health care coverage", and outlined ways in which she says her public option would offer more expansive health care coverage than those proposed by Buttigieg or Biden. "We have felt a lot of momentum on the ground".
The new poll came a day after former president Barack Obama warned the crowded field of Democratic White House hopefuls not to veer too far to the left because it would alienate voters.
Some California Democrats speculate Biden is staying away from the group simply because it is produced up of activists identified to boo much more centrist candidates, especially individuals who do not guidance Medicare for All.
In the "about right" category, Buttigieg was trailed by Biden at 55%, Warren at 48% and Sanders at 37%. Only 7 percent say his views are too liberal, while 13 percent feel they're too conservative.
But Buttigieg's surge of support in predominantly white, early-voting states like Iowa maybe be hard to translate in more diverse states where he is still relatively unknown. And they say his support from working-class voters, union members, blacks and Hispanics, along with significant chunks of independents and moderates, can't be duplicated by any other candidate.
"He's more than just a Goldilocks", the Utah congresswoman continued.
Taking years to fully move the country to Medicare for All would give Warren time to convince people happy with their current, private insurance to accept a fully government funded system.