Sen. Elizabeth Warren (D-Mass.) is going nowhere but up.

The 2020 candidate pulled off a rare showing in an Economist/YouGov poll published Wednesday, tying the largely untouchable former Vice President Joe Biden with 26 percent support among registered voters. It marks one of the few polls where Biden is within danger of losing his frontrunner status, and contains a dismal prediction for Sen. Bernie Sanders (I-Vt.).

Biden has only had a few close calls in previous polls, but Warren's 2020 rise has seemingly been eating away at his support as well as Sanders'. In a late August poll from Monmouth University, Sanders and Warren topped the pool with 20 percent support, and Biden was just behind at 19 percent. In this Economist/YouGov poll, Biden is back up, but so is Warren, both leaving Sanders a full 10 points behind at 16 percent.

Sen. Kamala Harris (D-Calif.) meanwhile has largely lost her post-debate spike, tying South Bend, Indiana Mayor Pete Buttigieg at 6 percent. And former Texas Rep. Beto O'Rourke, once a frontrunner himself, joins the 1 percent crowd at the bottom of the barrel.

2020 National Democratic Primary:

Warren 26%

Biden 26%

Sanders 16%

Buttigieg 6%

Harris 6%

Booker 2%

Yang 2%

Bennet 1%

Bullock 1%

Castro 1%

Gabbard 1%

Klobuchar 1%

O'Rourke 1%

Williamson 1%@YouGovUS/@TheEconomist 9/8-10https://t.co/pzE25Io89q pic.twitter.com/UEdcNIs0hK — Political Polls (@Politics_Polls) September 11, 2019

The Economist/YouGov surveyed 1,500 American adults from Sept. 8–10, who were selected via an opt-in Internet panel. The margin of error for registered voters was three percent. Find the whole poll here. Kathryn Krawczyk