NEW YORK (AP) — New York City mayoral hopeful Anthony Weiner plunged to fourth place among Democrats in the first poll taken since he admitted to having illicit online exchanges with women even after he resigned from Congress amid a sexting scandal.

The poll — which Weiner led just five days ago — also showed about half of likely Democratic voters saying Weiner should abandon his mayoral bid.

Weiner's support fell from 26 percent last week to 16 percent in Monday's Quinnipiac University poll. Last week's survey was taken largely before Weiner's latest scandal was revealed.

"He's in a free-fall," said poll director Maurice Carroll. "He can't win. He simply can't win."