Marco Rubio has moved up to third place in New Hampshire, behind Donald Trump and Ben Carson, according to a new poll released Monday by Monmouth University.
Trump drew 26 percent support, ahead of Carson's 16 percent and Rubio's 13 percent, triple what it was in Monmouth's September poll. The top three were followed by Ohio Gov. John Kasich at 11 percent, Texas Sen. Ted Cruz at 9 percent and former Florida Gov. Jeb Bush at 7 percent (that's unchanged from September, despite more his campaign's spending more than $6 million on TV ads).
Monmouth polled 410 likely GOP primary voters. The survey's error margin is 4.8 percent.
"Marco Rubio's standout performance in the last debate seems to have paid dividends in a contest that was supposed to be dominated by his former mentor Jeb Bush," Monmouth University Polling Institute director Patrick Murray said in a statement. "Rubio's new-found support seems to be a little softer than for other candidates at the front of the pack, but it is not particularly solid for anybody."
Another poll released Monday -- this time of Florida voters and by the Viewpoint Florida organization -- shows Rubio (16 percent) trailing Trump (27 percent), with Carson in third place (15 percent) and Bush tied for fourth with Cruz (12 percent). The poll's most interesting finding is that Bush's voters would seem to move to Rubio if the former Florida governor were the exit the race, whereas Rubio's voters would split among Bush, Carson and Cruz.
The Viewpoint robopoll surveyed 2,047 registered Republicans in English and Spanish using an automated telephone system. It has an error margin of 2.2 percent. Pollster Randy Nielsen disclosed to Politico that he's a Rubio supporter.
Both the New Hampshire and Florida polls were conducted after last week's primary debate in which Rubio bested Bush in an exchange over Rubio's poor Senate attendance record.
An earlier version of this post said Rubio's New Hampshire support had doubled, when in fact it had tripled.