Biden, Warren tied for lead in Iowa poll

Biden, Warren tied for lead in Iowa poll
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Former Vice President Joe BidenJoe BidenGOP senators balk at lengthy impeachment trial 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE and Sen. Elizabeth WarrenElizabeth Ann WarrenWarren goes local in race to build 2020 movement 2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides MORE (D-Mass.) are neck and neck atop the crowded Democratic presidential primary field in Iowa, according to a new poll. 

A survey from Emerson Polling released Thursday found the top two candidates tied at 23 percent each among voters who are expected to participate in the first caucus of the 2020 primary.

The results underscore Warren's rise in the primary race, and compares with previous Emerson Polling data released in March that showed Biden with a 16-point lead over the senator in Iowa.

Warren's support in the Hawkeye State has increased by 14 points compared to the survey conducted earlier this year, while Biden's support has dropped 2 points.

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The latest survey shows South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul Buttigieg2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (D) in third place at 16 percent support, leapfrogging Sen. Bernie SandersBernie Sanders2020 Democrats make play for veterans' votes 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE (I-Vt.), who has dropped 11 points since the March survey. Sanders now stands at 13 percent — 10 points behind Biden and Warren.

No other candidates polled in the double digits, including Sen. Kamala HarrisKamala Devi HarrisWarren goes local in race to build 2020 movement 2020 Dems put focus on stemming veteran suicides The Memo: Democrats confront prospect of long primary MORE. The California senator dropped 8 points in the early voting state poll, and now stands at 2 percent support.

The new poll places Harris behind tech entrepreneur Andrew YangAndrew YangWilliamson announces poverty plan with support for universal basic income, minimum wage The Hill's Morning Report - Diplomats kick off public evidence about Trump, Ukraine Outsider candidates outpoll insider candidates MORE, at 5 percent, and Montana Gov. Steve BullockSteve BullockBiden, Buttigieg condemn rocket attacks on Israel Press: Another billionaire need not apply Obama's former chief economist advising Buttigieg MORE, at 4 percent.

The survey of 888 registered voters was conducted between Oct. 13-16, including both before and after the latest Democratic presidential debate Tuesday night in Ohio that featured numerous rivals going after Warren.

The polling data is weighted by gender, age, education, region and mode based on 2016 turnout modeling. The margin of error for the survey is 3.2 percentage points.