Finally, new Quinnipiac poll, with trendlines from before debate:
Biden – 32% (-2)
Warren – 21% (+6)
Sanders – 14% (+3)
Harris – 7% (-5)
Buttigieg – 5% (-1)
O’Rourke – 2% (+0)
Booker – 2% (+1)
Yang – 1% (-1)
Klobuchar – 1% (+0)
Gabbard – 1% (+0)
Castro – 1% (+1)
206
662
1,590


