Biden retains big lead in poll, but Warren shows progress

Biden retains big lead in poll, but Warren shows progress

Former Vice President Joe BidenJoe BidenWarren warns Facebook may help reelect Trump 'and profit off of it' Trump accuses Biden of 'quid pro quo' hours after Mulvaney remarks Testimony from GOP diplomat complicates Trump defense MORE is holding on to his solid lead in the Democratic presidential primary, but Sen. Elizabeth WarrenElizabeth Ann WarrenWarren warns Facebook may help reelect Trump 'and profit off of it' Martin Luther King Jr.'s daughter knocks Zuckerberg for invoking her father while defending Facebook Overnight Health Care — Presented by National Taxpayers Union — House Dems advance drug pricing bill | Cases of vaping-related lung illnesses near 1,500 | Juul suspends sales of most e-cigarette flavors MORE's (D-Mass.) support is ticking upward, according to a new Morning Consult survey.

Thirty-seven percent of Democratic primary voters said they supported Biden in the poll, marking a 1 percentage point slip in support for the former vice president. 

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Warren's support, on the other hand, ticked up one point since last week. The same tracking poll showed Warren entering double-digit support earlier this month, putting her at third place behind Biden and Sen. Bernie SandersBernie SandersWarren raised more money from Big Tech employees than other 2020 Democrats: Report Krystal Ball reacts to Ocasio-Cortez endorsing Sanders: 'Class power over girl power' Saagar Enjeti praises Yang for bringing threat of automation to forefront at Ohio debate MORE (I-Vt.). 

The Massachusetts senator has consistently unveiled a number of policy initiatives through the year and has seen her support steadily climb in the primary polls.  

Biden has made fewer appearances on the campaign trail in recent weeks, but his name recognition is seen as having helped him maintain a solid lead in a crowded field of 24 Democrats in the primary. 

The former vice president will touch down in Iowa on Tuesday and is slated to slam President TrumpDonald John TrumpDemocratic senator rips Trump's 'let them fight' remarks: 'Enough is enough' Warren warns Facebook may help reelect Trump 'and profit off of it' Trump touts Turkey cease-fire: 'Sometimes you have to let them fight' MORE in a speech to voters in the first-in-the-nation caucus state

A CNN–Des Moines Register poll released last week showed Biden's support in the Hawkeye State slipping by about a third to 24 percent from the initial survey.