Fourth Straw Poll to Select the Next UN Secretary-General

A Seed of a Decision?

By Javier Surasky

Date written: September 29, 2026

Versión en español (ES)

UN Secretary-General’s office with the empty chair illuminated behind the desk and the New York skyline visible through the windows.

Following Bachelet’s withdrawal, Grossi regains three encouragements, Rodrigues-Birkett holds steady, and Espinosa records the sharpest deterioration of the round

The fourth straw poll to select the person who will succeed António Guterres at the helm of the United Nations leaves a more clearly defined contest: Rebeca Grynspan reaches ten encouragement votes, reduces her discouragements from five to three, and becomes the only candidate to surpass the nine-vote threshold. Carolyn Rodrigues-Birkett, however, remains unchanged from her previous result, just behind, but with fewer encouragements and more discouragements.

Rafael Grossi regains three encouragement votes and re-emerges as a candidate in contention, although a key source has informed us that at least two of the discouragement votes come from permanent members.

From a broader perspective, this new round shows a wider and possibly more revealing shift: no-opinion votes fall from 19 to 11, moving more strongly toward encouragement than discouragement (+5 and +3, respectively, compared with the third straw poll).

Results of the Fourth Straw Poll

Candidate

Encourage

Discourage

No opinion

Δ encourage

Δ discourage

Δ no opinion

Rebeca Grynspan

10

3

2

+1

−2

+1

Carolyn Rodrigues-Birkett

8

6

1

0

0

0

Rafael Grossi

8

7

0

+3

−1

−2

Olara Otunnu

5

8

2

0

+1

−1

Macky Sall

5

9

1

0

0

0

María Fernanda Espinosa Garcés

3

10

2

0

+4

−4

Ivonne A-Baki

1

11

3

+1

+1

−2

Source: 1 for 8 billion

Because the ballots are secret and colored ballots are still not being used to distinguish permanent from non-permanent members, these are net changes: they do not allow us to reconstruct how each member of the Security Council voted or to state that a particular vote moved from one category to another.

Bachelet’s Withdrawal Reduces the Field to Seven Candidates

Michelle Bachelet no longer participates in this round because, following the third straw poll, she announced that she would not continue her candidacy. Her final result had been one encouragement vote, 11 discouragements, and three no-opinion votes.

Her withdrawal shows that the polls have already begun to play a role in narrowing the field: Bachelet did not wait for the differentiated ballots that will make it possible to identify discouragements from permanent members. Instead, she withdrew after both the qualitative deterioration of her candidacy (her country, Chile, withdrew its support following Kast’s rise to power) and its quantitative deterioration had become evident.

I retain the combinatorial indicator used in the previous analyses, whose formula, assumptions, and limitations are explained in the article on the first straw poll.

Possibility That No Permanent Member of the Security Council Voted Against the Candidate

Candidate

Indicator in the third poll

Indicator in the fourth poll

Rebeca Grynspan

8.4%

26.4%

Carolyn Rodrigues-Birkett

4.2%

4.2%

Rafael Grossi

0.7%

1.9%

Olara Otunnu

1.9%

0.7%

Macky Sall

0.2%

0.2%

María Fernanda Espinosa Garcés

4.2%

0.03%

Ivonne A-Baki

0.03%

0%

Source: author’s calculations

Let us recall that this indicator does not represent an actual probability of a veto, but rather a combinatorial calculation of probabilities, and it does not allow us to identify how any individual State voted.

Where Does Each Candidacy Stand After the Fourth Straw Poll?

Grynspan Consolidates the Most Favorable Position

In this round, Grynspan combines three elements that no other candidacy brings together: ten encouragement votes, only three discouragements, and two no-opinion votes. This greatly reduces the possibility that she faces a potential veto and makes her the only candidate to surpass the nine-vote threshold required for election. In addition, she increases her support while reducing both discouragements and no-opinion votes.

Rodrigues-Birkett Holds Her Ground

Rodrigues-Birkett repeats exactly her result from the third round: eight encouragement votes, six discouragements, and one no-opinion vote. This stability prevents further deterioration, but is not enough to reverse the increase in opposition she suffered in September. Arithmetically, she could reach nine encouragements if her sole no-opinion vote turned into an encouragement; politically, the six discouragements leave open the question of whether there is opposition from permanent members.

These two candidates are the potential contenders with a real chance of being selected by the Council as the candidate it will propose to the General Assembly.

Behind them, Grossi regains ground by recording the largest increase in encouragements of the round, from five to eight, while reducing his discouragements by one, from eight to seven. He also becomes the only candidate with no no-opinion votes and, consequently, his candidacy appears to be polarizing positions both for and against him. Added to this is the unconfirmed information that two permanent members may be vetoing him.

Further behind, and out of the race unless something unexpected happens, Otunnu retains five encouragement votes, but his discouragements rise from seven to eight and his no-opinion votes fall from three to two. The change, though minimal, further weakens a position that was already unfavorable.

Sall remains unchanged, with five encouragement votes, nine discouragements, and one no-opinion vote. That stability does not improve a position that was already far from the threshold and facing substantial opposition.

Espinosa records the sharpest deterioration: she retains three encouragement votes, but her discouragements increase from six to ten, while her no-opinion votes fall from six to two. The fact that both variations involve four votes does not allow us to state that they came from the same four States, but it does show that the reduction in aggregate uncertainty worked against her candidacy.

A-Baki receives her first encouragement vote, but also adds another discouragement, bringing her total to eleven. We can therefore be certain that at least one necessarily comes from a permanent member. The three no-opinion votes she retains cannot change her situation even if all of them were to move in her favor.

Conclusion: More Clearly Defined Contest, but Still Unresolved

The fourth round produces a clearer separation among the candidacies: Grynspan leads in encouragements and receives the fewest discouragements, and among the remaining candidates, only Rodrigues-Birkett appears to be in a position to challenge her lead, although the lack of movement between the third and fourth straw polls is not good news for her.

Among the rest of the field, we see no changes that might suggest new viable trajectories: Grossi’s improvement is also a sign that his candidacy divides the Council; Otunnu deteriorates slightly; Sall remains stalled; Espinosa suffers a sharp increase in discouragements; and she and A-Baki remain arithmetically far from the minimum threshold of required votes.

The main conclusion is comparative. Grynspan emerges strengthened and extends her lead, but the secrecy of the ballots still prevents us from knowing whether any of her three discouragements carries the weight of a veto.

In aggregate terms, we see an increase in clearly defined positions in favor of certain candidates (35 in the previous straw poll and 40 in this one), but the increase is concentrated in Grossi (+3), whose chances are low for the reasons already noted regarding possible vetoes, and A-Baki (+1). Perhaps the affirmative vote that most changes the round is the one gained by Grynspan.

However, that perspective may lead to confusion: if we consider only the results obtained by the seven candidates who remain active—which means excluding the first round (A-Baki was not yet a candidate) and subtracting from the second and third rounds the votes received by Bachelet, which ultimately led her to withdraw her candidacy—the result is somewhat different. Aggregate discouragement votes do not fall, but continue to increase. The general trajectory observed in the third straw poll therefore continues in this respect, although with less intensity. The major new development is instead the sharp decline in no-opinion votes.

Source: Own

Total discouragement votes continue to rise, from 51 to 54, driven especially by María Fernanda Espinosa’s setback (+4), while no-opinion votes, as expected, show a sharp reduction as the process advances, falling from 19 to 11 in what is the most notable aggregate movement of the round.

Taken together, this shows that the Council is becoming less undecided and its positions more clearly differentiated: the contest for the position now has a clearer leader and a single significant contender, but the final outcome remains open.

Now all that remains is to see the colors of the ballot behind each vote.

References

1 for 8 billion. (2026, September 29). Unofficial table corresponding to the fourth straw poll. https://1for8billion.org/straw-polls-2026

France 24. (2026, September 21). Bachelet renuncia a su candidatura a secretaria general de la ONU.

Doncel, L. (2026, September 29). Rebeca Grynspan se distancia del resto de candidatos en la carrera por la jefatura de la ONU en la cuarta votación informal. El País (España). https://elpais.com/internacional/2026-09-29/rebeca-grynspan-se-distancia-del-resto-candidatos-en-la-carrera-por-la-jefatura-de-la-onu-en-la-cuarta-votacion-informal.html

Previous Coverage

How to Read the First 2026 Straw Poll: A Mathematical Model

Second Straw Poll to Select the Next UN Secretary-General

Third UN Straw Poll: Grynspan Regains the Lead