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Biden support slips below 30 percent in new poll

Former Vice President Joe BidenJoe BidenHouse Democrats pass sweeping .9T COVID-19 relief bill with minimum wage hike Biden to hold virtual bilateral meeting with Mexican president More than 300 charged in connection to Capitol riot MORE's support in the latest Hill-HarrisX poll of Democratic voters has fallen below 30 percent, his lowest mark in the survey so far.

The poll, released on Monday, found that 29 percent of likely Democratic primary voters support Biden as their first choice for president, while 16 percent back Sen. Bernie SandersBernie SandersHouse Democrats pass sweeping .9T COVID-19 relief bill with minimum wage hike House set for tight vote on COVID-19 relief package On The Money: Democrats scramble to save minimum wage hike | Personal incomes rise, inflation stays low after stimulus burst MORE (I-Vt.).

This marks a 4-point drop for Biden from an identical poll conducted two weeks ago and immediately following the first 2020 Democratic debates. It also represents a 17-point drop from when same poll was first conducted in May, a month after Biden formally launched his campaign bid.

Sen. Kamala HarrisKamala HarrisExclusive: How Obama went to bat for Warren To unite America, Biden administration must brace for hate Democratic strategists start women-run media consulting firm MORE (D-Calif.) and Sen. Elizabeth WarrenElizabeth WarrenExclusive: How Obama went to bat for Warren Minimum wage setback revives progressive calls to nix Senate filibuster Democratic strategists start women-run media consulting firm MORE (D-Mass.) retained their spots, with Harris getting 11 percent and Warren trailing close behind at 9 percent.

South Bend, Ind. Mayor Pete ButtigiegPete ButtigiegExclusive: How Obama went to bat for Warren The Hill's 12:30 Report - Presented by Facebook - Biden vs. Trump, part II Chasten Buttigieg jokes about his husband biking home from work MORE, who ranked as high as third place at one earlier poll, slipped to sixth place, garnering just 1 percent of support.

Former Texas Congressman Beto O'RourkeBeto O'RourkeTexas Republican criticizes Cruz for Cancun trip: 'When a crisis hits my state, I'm there' Progressives target 'Cancun Cruz' in ad to run on 147 Texas radio stations 'Get off TV': Critics blast Abbott over handling of Texas power outages following winter storm MORE, who has been lagging in national polls over the last few months, notched up 2 points to 3 percent. 

A large number of respondents, 17 percent, were undecided.

The poll can be viewed as another setback for Biden, whose campaign has been grappling with attacks on his civil rights record in recent weeks.

Harris and Biden went head-to-head last month on the second night of the first Democratic presidential debates, where she confronted him on his past comments about working with segregationists senators and his past opposition to school busing.

The California senator saw a bump in a number of polls — including the Hill’s own Hill-HarrisX survey — following the confrontation.

Yet the poll continues to show Biden with a double digit lead over Sanders, and he has more than twice the support of Harris and more than three times the support of Warren to this point.

The Hill-HarrisX poll surveyed 1,003 voters between July 12 and July 13. The sampling margin of error of plus or minus 3.1 percentage points.

—Tess Bonn