Iowa-based political scientist: Warren, Buttigieg boast strongest ground campaigns

A political scientist based in Iowa said Monday that 2020 hopefuls Sen. Elizabeth WarrenElizabeth Ann WarrenKlobuchar plans campaign rallies across Iowa despite impeachment trial Hillicon Valley — Presented by Philip Morris International — Wyden asks NSA to investigate White House cybersecurity | Commerce withdraws Huawei rule after Pentagon objects | Warren calls on Brazil to drop Greenwald charges Warren pledges to release Trump records if elected MORE (D-Mass.) and former South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegPoll: 68 percent of Democrats say it 'makes no difference' if a candidate is a billionaire CNN to host two straight nights of Democratic town halls before NH primary Poll shows tight general election battle between Trump and top Democrats MORE boast the strongest ground campaigns out of the crowded Democratic field ahead of state’s first-in-the-nation caucuses.

“The consensus is among people I talk to that the Warren campaign is very, very strong on the ground, that the Buttigieg campaign is close to just as strong in the sense that they have a very large number of organizers, a lot of offices, massive numbers of volunteers,” Dave Redlawsk, a visiting professor at the University of Iowa, told Hill.TV.

“But the more important thing is that they’re actually out there identifying voters and tracking them and reaching out to them — probably most effective [of] the entire group,” he added.

Redlawsk added that while Sen. Bernie SandersBernie SandersSanders to Clinton: 'This is not the kind of rhetoric that we need' Conservative reporter on Sanders: He's not a 'yes man' Human Rights Campaign president rips Sanders's embrace of Rogan endorsement MORE (I-Vt.) boasts a strong presence in the Hawkeye State, his campaign has been relying a lot on past support he gained during his previous presidential bid in 2016.

“The Sanders folks figured that they’ve got many of those people locked,” he said. “But I don’t think they’re quite as intensely active as the Warren and Buttigieg campaign.”

The Vermont independent led a critical Des Moines Register/CNN poll of Iowa voters released last Friday.

The survey, which is widely considered the most authoritative in Iowa, showed Sanders with 20 percent support among likely Democratic caucus-goers, followed by Warren at 17 percent, Buttigieg at 16 percent and former Vice President Joe BidenJoe BidenSchiff closes Democrats' impeachment arguments with emotional appeal to remove Trump Conservative reporter on Sanders: He's not a 'yes man' Democrats feel political momentum swinging to them on impeachment MORE at 15 percent.

All four contenders are poised to take the stage at Tuesday’s debate in Iowa, which will be the last time the candidates will debate before the the Feb. 3 caucuses.

—Tess Bonn