Warren narrows Biden's lead in new poll

Sen. Elizabeth WarrenElizabeth WarrenThe Memo: Trump ratchets up Twitter turmoil Hillicon Valley: Twitter flags Trump tweet for 'glorifying violence' | Cruz calls for criminal investigation into Twitter over alleged sanctions violations | Senators urge FTC to investigate TikTok child privacy issues Warren condemns 'horrific' Trump tweet on Minneapolis protests, other senators chime in MORE’s (D-Mass) support jumped up in a new poll, cutting into former Vice President Joe BidenJoe BidenDonald Trump and Joe Biden create different narratives for the election Poll: Biden widens lead over Trump to 10 points Biden: 'We are a nation in pain, but we must not allow this pain to destroy us' MORE's lead in the Democratic presidential primary. 

Warren had the support of 24 percent of registered Democrats and Democratic-leaning independent voters, based on an IBD/TIPP poll released Tuesday, marking a 7-point uptick for the senator since an August poll.

By contrast, Biden saw a 2 point decrease in his support, leaving it at 28 percent. He now leads Warren by just 4 points, compared to a 13 point difference in the previous poll.

Biden's lead over Warren in the IBD/TIPP survey is smaller than in some other national polls. A RealClearPolitics average of polls has Biden's support at 30.1 percent, a 12.7 point lead over Warren’s 17.4 percent. 

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Sen. Bernie SandersBernie SandersExpanding tax credit for businesses retaining workers gains bipartisan support The battle of two Cubas Coronavirus Report: The Hill's Steve Clemons interviews Rep. Ro Khanna MORE (I-Vt.) remains in third with the support of 12 percent of those surveyed, consistent with last month’s poll, while Sen. Kamala HarrisKamala Devi HarrisStates respond with force amid another night of protests Protesters knock down White House security barricades as tensions mount over Floyd's death The Memo: Trump ratchets up Twitter turmoil MORE's (D-Calif.) support dropped 5 points, from 11 percent to 6 percent.

Harris is now just slightly ahead of South Bend, Ind., Mayor Pete ButtigiegPete ButtigiegBiden hopes to pick VP by Aug. 1 It's as if a Trump operative infiltrated the Democratic primary process Here's how Biden can win over the minority vote and the Rust Belt MORE, who's at 5 percent support, while Sen. Cory BookerCory Anthony Booker Sunday shows preview: Leaders weigh in as country erupts in protest over George Floyd death Warren condemns 'horrific' Trump tweet on Minneapolis protests, other senators chime in Senate Dems press DOJ over coronavirus safety precautions in juvenile detention centers MORE (D-N.J.) is at 4 percent based on the IBD/TIPP poll.  

No other candidates polled higher than 1 percent. 

The poll reflects 903 responses collected from Aug. 22-30. There is a margin of error of 3.3 percentage points. The questions regarding the 2020 election reflect 360 registered voters who identify as Democrats or independents who lean Democrat.