Elizabeth Warren and Kamala Harris AP Photo/David J. Phillip

Sen. Kamala Harris of California dropped out of the Democratic race, and as the most popular candidate by far to exit the race to date, this may have enormous consequences for the remaining candidates.

Though Harris‘ top-line numbers have been modest — the junior senator from the most populous state in the union is polling at about 5%, according to Morning Consult — she still has amassed a sizeable following.

Insider has been polling the 2020 primary since December 2018, focusing not on which single candidate a person would vote for if the election were held today but, rather, which of the candidates are seen as satisfactory to portions of the electorate. This lets us observe the overlaps and the trends in people vying for the same voters. You can download all polls down to the respondent-level data here.

Harris‘ exit will have more fallout than merely where the 5% of people who’d vote for her today will go. Here’s who stands to gain.

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Harris‘ supporters love Elizabeth Warren

We looked specifically at the seven polls we’ve conducted since the final week of September.

Of 2,981 respondents who said they were registered to vote and would likely participate in the Democratic primary, 67% were familiar with Harris, and of those, 41% would have been satisfied in the event she became the nominee. That’s 829 respondents, and their preferences stand out compared with a typical Democrat.

A full 77% of respondents who said they’d be happy with a Harris win were also happy with an Elizabeth Warren win. That’s 13 percentage points higher than Warren’s performance overall. Warren has arguably been eating into Harris‘ base all autumn.

Among the other two candidates at the head of the pack, former Vice President Joe Biden and Sen. Bernie Sanders, 64% of Harris fans in the polls were satisfied with a Biden nomination (10 percentage points higher than the former vice president’s performance overall) and 58% were happy with Sanders (just 3 percentage points higher than his performance overall).

Looking at the other contenders, just one other candidate is worth remarking on: 46% of Harris fans in the polls liked Sen. Cory Booker of New Jersey, 12 percentage points higher than his performance overall. The two senators have a substantial overlap, and both have struggled to break into the top tier. For a candidate that’s been struggling to capitalize on broad popularity, this could be Booker’s best opportunity to seize a portion of the voter pool.

10 14 19 2020 primary election map v02 Ruobing Su/Business Insider

California is ridiculously important in the Democratic primary

California moved their primary up to Super Tuesday, making an important day in the primaries into a free-for-all where 35% of delegates to the Democratic National Convention are doled out in a single day.

California accounts for 10.8% of all the delegates that will decide the presidential nominee. It couldn’t be any more important, and excellent performers in that state will not only reap a heaping pile of delegates to take to Wisconsin but also get slingshotted through the remainder of the primaries.

Super Tuesday, and California in particular, will be the last stand of many campaigns. And Harris is now a free agent.

Harris reaches constituencies that others may need desperately

We can also drill down on demographic crosstabs in Insider’s polling to find out groups that Harris outperformed among. For other candidates courting endorsements, Harris is now arguably one of the top targets on the market based on a couple of key factors.

The first-in-the-nation New Hampshire primary is very consequential, and Harris polled particularly well among Democrats from New England (up 8.8 percentage points compared with her national performance).

She also did well among Democrats from the Pacific census region (up 5 percentage points), which naturally contains California.

Harris did disproportionately well among women, polling 8 percentage points better among women than among men. Women make up the majority of the Democratic electorate, and a number of candidates would love to shore up their numbers among women.

All this is to say that Harris‘ work in the 2020 presidential election is likely far from over. Though she struggled to lock supporters down — only about 4% of her supporters who responded in the polls liked her and her alone — she nevertheless was satisfactory to 41% of the Democratic electorate in the polls that was familiar with her.

In exiting, Harris went from the fifth or sixth most wanted contender to the No. 1-desired campaign surrogate and endorsement.