Former Vice President Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE leads President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE by 5 points in Arizona, according to a poll released early Tuesday.

The OH Predictive Insights poll found 49 percent support for Biden, who formally entered the race for the White House last month, compared to 44 percent for Trump. Seven percent are undecided.

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A similar poll conducted in February showed Biden and Trump tied at 46 points.

Trump, who beat Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE in Arizona by 3.5 points in 2016, could be the first Republican to lose the state since Bob Dole lost to Bill Clinton William (Bill) Jefferson ClintonEpstein podcast host says he affiliated with elites from 'both sides of the aisle' Ruth Bader Ginsburg lies in repose at Supreme Court Business groups start gaming out a Biden administration MORE in 1996.

“The Biden bump we have seen in other states carried over to Arizona. Fifteen months before the Arizona primary, Biden is the Democratic candidate best positioned to take on the president,” said Mike Noble, chief of research and managing partner of OH Predictive Insights. “If Democrats put electability above all else, Biden could run away with the nomination and the White House.”

Sen. Elizabeth Warren Elizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.) came in second to Biden among Democrats with 42 percent, but did not muster enough support to surpass Trump’s 47 percent. Eleven percent were undecided in that match-up.

Former Rep. Beto O’Rourke (D-Texas) polled at 40 percent compared to Trump’s 46 percent, and Sen. Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (D-Calif.) 39 percent came in behind Trump’s 48 percent support.

Tied at 37 percent support in the poll are Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) and South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegThe Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice Hillicon Valley: FBI, DHS warn that foreign hackers will likely spread disinformation around election results | Social media platforms put muscle into National Voter Registration Day | Trump to meet with Republican state officials on tech liability shield MORE (D). They both came in behind Trump’s 46 percent support with 16 percent of respondents undecided.

The poll of 600 likely Arizona general election voters, conducted May 1–2, has a margin of error of 4 percentage points.

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Biden takes 32-point lead over Sanders in new 2020 poll