All week long, the story has been the rise of Pete Buttigieg to co-frontrunner status with Bernie Sanders. The latest exclusive WBZ/Boston Globe/Suffolk University tracking poll shows they’re still co-leaders within the poll’s 4.4% margin of error, with Sanders holding steady at 24% and Buttigieg slipping a bit to 22%.

Elizabeth Warren and Joe Biden remain static in third and fourth places with 13% and 10% respectively…

Amy Klobuchar is right behind Biden now at 9%, up three points over Friday night. She appears to be the only candidate to get a boost from Friday’s debate, with two-thirds of the poll taken during and after that event.

And it seems the debate injected doubt into the minds of some voters. The undecideds rose from 7% Friday night to 12% Saturday night.