Opinion Poll by Ipsos for Het Laatste Nieuws, Le Soir, RTL TVi and VTM, 1–9 December 2025

Voting Intentions | Seats | Coalitions | Technical Information

Voting Intentions

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Confidence Intervals

Party Last Result Poll Result 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Parti Socialiste 23.2% 29.0% 27.2–30.9% 26.7–31.4% 26.3–31.9% 25.4–32.8%
Mouvement Réformateur 29.6% 21.3% 19.7–23.1% 19.3–23.6% 18.9–24.0% 18.2–24.8%
Parti du Travail de Belgique 12.1% 19.5% 18.0–21.2% 17.6–21.7% 17.2–22.1% 16.5–22.9%
Les Engagés 20.6% 17.2% 15.8–18.9% 15.4–19.3% 15.0–19.7% 14.4–20.5%
Ecolo 7.0% 7.4% 6.4–8.6% 6.1–8.9% 5.9–9.2% 5.5–9.8%
Chez Nous 2.8% 2.8% 2.2–3.6% 2.1–3.8% 1.9–4.0% 1.7–4.4%
DéFI 2.7% 2.7% 2.1–3.5% 2.0–3.7% 1.9–3.9% 1.6–4.3%

Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.

Seats

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Confidence Intervals

Party Last Result Median 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Parti Socialiste 19 24 23–26 22–26 21–27 20–27
Mouvement Réformateur 26 17 16–19 15–20 15–20 14–20
Parti du Travail de Belgique 8 15 14–16 14–17 14–17 13–18
Les Engagés 17 14 13–15 12–15 12–15 11–16
Ecolo 5 5 2–5 2–5 1–6 1–6
Chez Nous 0 0 0–2 0–2 0–2 0–2
DéFI 0 0 0 0 0 0

Parti Socialiste

For a full overview of the results for this party, see the Parti Socialiste page.

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Number of Seats Probability Accumulated Special Marks
19 0.1% 100% Last Result
20 0.7% 99.9%  
21 2% 99.2%  
22 4% 97%  
23 42% 94%  
24 21% 51% Median
25 17% 31%  
26 11% 13%  
27 2% 3%  
28 0.3% 0.4%  
29 0.1% 0.1%  
30 0% 0%  

Mouvement Réformateur

For a full overview of the results for this party, see the Mouvement Réformateur page.

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Number of Seats Probability Accumulated Special Marks
13 0.1% 100%  
14 1.1% 99.9%  
15 4% 98.8%  
16 7% 95%  
17 47% 88% Median
18 21% 41%  
19 12% 20%  
20 7% 8%  
21 0.2% 0.3%  
22 0% 0%  
23 0% 0%  
24 0% 0%  
25 0% 0%  
26 0% 0% Last Result

Parti du Travail de Belgique

For a full overview of the results for this party, see the Parti du Travail de Belgique page.

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Number of Seats Probability Accumulated Special Marks
8 0% 100% Last Result
9 0% 100%  
10 0% 100%  
11 0% 100%  
12 0.2% 100%  
13 0.7% 99.7%  
14 32% 99.1%  
15 30% 67% Median
16 31% 38%  
17 6% 7%  
18 0.9% 1.3%  
19 0.4% 0.5%  
20 0.1% 0.1%  
21 0% 0%  

Les Engagés

For a full overview of the results for this party, see the Les Engagés page.

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Number of Seats Probability Accumulated Special Marks
11 1.0% 100%  
12 7% 99.0%  
13 24% 92%  
14 24% 68% Median
15 43% 43%  
16 0.4% 0.6%  
17 0.1% 0.2% Last Result
18 0% 0.1%  
19 0% 0%  

Ecolo

For a full overview of the results for this party, see the Ecolo page.

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Number of Seats Probability Accumulated Special Marks
1 4% 100%  
2 7% 96%  
3 18% 89%  
4 13% 70%  
5 55% 57% Last Result, Median
6 2% 3%  
7 0.4% 0.4%  
8 0.1% 0.1%  
9 0% 0%  

Chez Nous

For a full overview of the results for this party, see the Chez Nous page.

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Number of Seats Probability Accumulated Special Marks
0 84% 100% Last Result, Median
1 2% 16%  
2 14% 15%  
3 0.5% 0.5%  
4 0% 0%  

DéFI

For a full overview of the results for this party, see the DéFI page.

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Number of Seats Probability Accumulated Special Marks
0 100% 100% Last Result, Median

Coalitions

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Confidence Intervals

Coalition Last Result Median Majority? 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Parti Socialiste – Parti du Travail de Belgique – Les Engagés 44 53 100% 51–55 50–56 50–56 49–57
Parti Socialiste – Mouvement Réformateur – Ecolo 50 45 100% 44–47 44–48 43–49 42–49
Parti Socialiste – Parti du Travail de Belgique – Ecolo 32 43 100% 41–45 41–45 40–46 39–47
Parti Socialiste – Les Engagés – Ecolo 41 42 99.9% 40–44 40–44 39–45 38–46
Parti Socialiste – Mouvement Réformateur 45 41 99.7% 40–43 39–44 39–45 38–46
Parti Socialiste – Parti du Travail de Belgique 27 39 85% 37–41 37–42 36–42 35–43
Parti Socialiste – Les Engagés 36 38 64% 36–40 35–40 35–41 34–42
Mouvement Réformateur – Les Engagés – Ecolo 48 36 9% 34–37 33–38 33–38 32–39
Mouvement Réformateur – Les Engagés 43 31 0% 30–33 29–34 29–34 28–35
Parti Socialiste – Ecolo 24 28 0% 26–30 25–31 25–31 24–32
Mouvement Réformateur – Ecolo 31 22 0% 20–24 19–24 19–25 18–25
Parti du Travail de Belgique – Ecolo 13 19 0% 17–21 17–21 16–22 15–23

Parti Socialiste – Parti du Travail de Belgique – Les Engagés

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Number of Seats Probability Accumulated Special Marks
44 0% 100% Last Result
45 0% 100%  
46 0% 100%  
47 0% 100%  
48 0.1% 100%  
49 0.6% 99.9%  
50 4% 99.2%  
51 12% 95%  
52 12% 82%  
53 39% 70% Median
54 14% 31%  
55 10% 17%  
56 5% 7%  
57 1.2% 1.5%  
58 0.2% 0.3%  
59 0% 0%  

Parti Socialiste – Mouvement Réformateur – Ecolo

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Number of Seats Probability Accumulated Special Marks
40 0.1% 100%  
41 0.2% 99.9%  
42 0.9% 99.7%  
43 3% 98.8%  
44 17% 95%  
45 31% 78%  
46 25% 47% Median
47 13% 22%  
48 5% 9%  
49 3% 4%  
50 0.4% 0.4% Last Result
51 0% 0%  

Parti Socialiste – Parti du Travail de Belgique – Ecolo

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Number of Seats Probability Accumulated Special Marks
32 0% 100% Last Result
33 0% 100%  
34 0% 100%  
35 0% 100%  
36 0% 100%  
37 0% 100%  
38 0% 100% Majority
39 0.5% 99.9%  
40 4% 99.5%  
41 9% 96%  
42 20% 87%  
43 25% 67%  
44 24% 42% Median
45 13% 18%  
46 3% 4%  
47 1.2% 1.4%  
48 0.1% 0.2%  
49 0% 0%  

Parti Socialiste – Les Engagés – Ecolo

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Number of Seats Probability Accumulated Special Marks
37 0.1% 100%  
38 1.0% 99.9% Majority
39 3% 98.9%  
40 11% 96%  
41 17% 84% Last Result
42 27% 68%  
43 26% 40% Median
44 10% 14%  
45 3% 4%  
46 1.2% 1.3%  
47 0.1% 0.1%  
48 0% 0%  

Parti Socialiste – Mouvement Réformateur

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Number of Seats Probability Accumulated Special Marks
36 0.1% 100%  
37 0.3% 99.9%  
38 1.2% 99.7% Majority
39 5% 98.5%  
40 19% 93%  
41 35% 74% Median
42 19% 39%  
43 11% 21%  
44 7% 10%  
45 2% 3% Last Result
46 1.0% 1.1%  
47 0.1% 0.1%  
48 0% 0%  

Parti Socialiste – Parti du Travail de Belgique

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Number of Seats Probability Accumulated Special Marks
27 0% 100% Last Result
28 0% 100%  
29 0% 100%  
30 0% 100%  
31 0% 100%  
32 0% 100%  
33 0% 100%  
34 0.1% 100%  
35 0.5% 99.8%  
36 2% 99.3%  
37 12% 97%  
38 21% 85% Majority
39 29% 64% Median
40 23% 35%  
41 7% 13%  
42 4% 6%  
43 1.2% 1.5%  
44 0.2% 0.3%  
45 0% 0%  

Parti Socialiste – Les Engagés

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Number of Seats Probability Accumulated Special Marks
33 0.2% 100%  
34 0.5% 99.8%  
35 4% 99.3%  
36 12% 95% Last Result
37 19% 83%  
38 32% 64% Median, Majority
39 20% 32%  
40 7% 12%  
41 4% 5%  
42 1.1% 1.1%  
43 0.1% 0.1%  
44 0% 0%  

Mouvement Réformateur – Les Engagés – Ecolo

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Number of Seats Probability Accumulated Special Marks
30 0.1% 100%  
31 0.4% 99.9%  
32 2% 99.6%  
33 5% 98%  
34 10% 93%  
35 26% 83%  
36 31% 57% Median
37 17% 26%  
38 7% 9% Majority
39 2% 2%  
40 0.3% 0.3%  
41 0.1% 0.1%  
42 0% 0%  
43 0% 0%  
44 0% 0%  
45 0% 0%  
46 0% 0%  
47 0% 0%  
48 0% 0% Last Result

Mouvement Réformateur – Les Engagés

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Number of Seats Probability Accumulated Special Marks
27 0.2% 100%  
28 2% 99.8%  
29 4% 98%  
30 16% 94%  
31 30% 78% Median
32 24% 48%  
33 16% 24%  
34 6% 8%  
35 2% 2%  
36 0.1% 0.1%  
37 0% 0%  
38 0% 0% Majority
39 0% 0%  
40 0% 0%  
41 0% 0%  
42 0% 0%  
43 0% 0% Last Result

Parti Socialiste – Ecolo

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Number of Seats Probability Accumulated Special Marks
23 0.1% 100%  
24 0.6% 99.9% Last Result
25 5% 99.3%  
26 9% 94%  
27 18% 85%  
28 33% 67%  
29 16% 33% Median
30 10% 17%  
31 6% 7%  
32 0.7% 0.8%  
33 0.1% 0.1%  
34 0% 0%  

Mouvement Réformateur – Ecolo

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Number of Seats Probability Accumulated Special Marks
17 0.3% 100%  
18 1.5% 99.7%  
19 6% 98%  
20 13% 92%  
21 17% 79%  
22 41% 62% Median
23 11% 21%  
24 7% 10%  
25 3% 3%  
26 0.2% 0.3%  
27 0.1% 0.1%  
28 0% 0%  
29 0% 0%  
30 0% 0%  
31 0% 0% Last Result

Parti du Travail de Belgique – Ecolo

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Number of Seats Probability Accumulated Special Marks
13 0% 100% Last Result
14 0% 100%  
15 2% 100%  
16 3% 98%  
17 7% 96%  
18 7% 89%  
19 41% 82%  
20 22% 40% Median
21 16% 19%  
22 2% 3%  
23 0.5% 0.6%  
24 0.1% 0.2%  
25 0% 0%  

Technical Information

Opinion Poll

Calculations