Rubio surges in Oklahoma: poll
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A new poll shows Republican presidential hopeful Marco RubioMarco Antonio RubioGOP senator blocks bill aimed at preventing Russia election meddling Group of veterans call on lawmakers to support impeachment, 'put country over politics' Overnight Health Care — Presented by That's Medicaid — Deal on surprise medical bills faces obstacles | House GOP unveils rival drug pricing measure ahead of Pelosi vote | Justices to hear case over billions in ObamaCare payments MORE surging in Oklahoma, rising 10 points ahead of the state's primary on March 1. 

The Florida senator takes 21 percent support, trailing front-runner Donald TrumpDonald John TrumpRepublicans consider skipping witnesses in Trump impeachment trial Bombshell Afghanistan report bolsters calls for end to 'forever wars' Lawmakers dismiss Chinese retaliatory threat to US tech MORE, who takes 30 percent, according to the SoonerPoll. Trump's support in the state was at 35 percent in a Jan. 23 poll. 

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Ted CruzRafael (Ted) Edward CruzBarr: 'I haven't looked into' whether Ukraine meddled in 2016 election Houston police chief excoriates McConnell, Cornyn and Cruz on gun violence FBI head rejects claims of Ukrainian 2016 interference MORE places second, with 25 percent support. After Rubio in third, Ben Carson comes in fourth, with 5.7 percent support. No other Republican draws more than 5 percent support.

The poll was conducted Feb. 6–9, largely after Rubio’s shaky performance in Saturday night’s GOP debate but before Trump’s resounding victory in Tuesday's New Hampshire primary and a stronger-than-expected showing from John Kasich.

“Early on, Trump’s been able to channel the anger and frustration felt among Republicans toward President Obama, but anger and frustration can only take you so far in a presidential race,” said Bill Shapard, founder of the SoonerPoll.

Rubio has been endorsed in Oklahoma by two lawmakers, Sen. Jim InhofeJames (Jim) Mountain InhofeBombshell Afghanistan report bolsters calls for end to 'forever wars' Gabbard calls for congressional inquiry over Afghanistan war report Defense bill includes fix for military families' survivor benefits MORE (R-Okla.) and Rep. Markwayne Mullin (R-Okla.), while Cruz has been endorsed by Rep. Jim BridenstineJames (Jim) Frederick BridenstineDoug Loverro's job is to restore American spaceflight to the ISS and the moon Why Voyager 2's discoveries from interstellar space have scientists excited NASA planned expedition to orbit Pluto won't settle whether it's a planet MORE (R-Okla.).

Trump performed best in the poll among self-identified liberal Republicans, receiving 33.5 percent support from the group and 36.9 percent support from self-described moderates.

The poll surveyed 414 likely Republican voters and has a margin of error of 4.81 percent.