Intercampus Tags PS at 24.3% Ahead of Chega's 20.3% as AD Drops 3.4 Points to 19.5% — Medialivre's June Barometer Reads Carneiro at 33.8% on the Prime-Minister Preference Cut Against Montenegro's 22.3% and Ventura's 22.2%

Intercampus's June barometer for Medialivre — the editorial perimeter that runs Correio da Manhã (the country's best-selling daily), CMTV (the rolling cable-news channel), the Now news portal and the Jornal de Negócios business broadsheet — opens a fresh four-point lead for the PS over Chega and prints a three-and-a-half-point retreat for the PSD/CDS-anchored AD (Aliança Democrática, the centre-right coalition that has governed since the March 2026 snap election) inside the 7-day fieldwork window of 10 to 16 June. The headline read: PS at 24.3% of voting intention against 20.3% for Chega and 19.5% for the AD coalition, with José Luís Carneiro — the Socialist secretary-general who took the party's reins in September 2025 — pencilled in as the country's preferred prime minister on 33.8%, fully 11.5 points clear of incumbent Luís Montenegro (22.3%) and Chega leader André Ventura (22.2%).

The toplines and the swing

The Intercampus methodology note pegs the survey on 609 random-digit telephone interviews of Portuguese residents aged 18 or over and registered on the electoral roll across continental Portugal, with a 55.3% response rate, between 10 and 16 June. The margin of error sits at 4 percentage points at the 95% confidence interval — wide enough to mean the PS-Chega and the Chega-AD gaps are not statistically separable, but narrow enough to make the AD's month-on-month slide the cleanest swing read in the tape.

The party-by-party numbers, with the May 2026 Intercampus barometer as the comparator, run as follows. The PS prints 24.3%, up 0.7 points on the 23.6% May read. Chega lifts to 20.3%, an additional 1.0 point on the 19.3% prior. AD (PSD/CDS) drops to 19.5% — a 3.4-point fall from 22.9% in May that wipes out the coalition's recently-claimed second place and pushes it into third inside a month. The Intercampus release itself frames the line verbatim: "O PS alcança 24,3% das intenções de voto, contra 20,3% do Chega e 19,5% da coligação PSD/CDS" ("The PS reaches 24.3% of voting intention against 20.3% for Chega and 19.5% for the PSD/CDS coalition"). The barometer does not break out separate reads for Iniciativa Liberal, Livre, PCP or BE inside this published tape — Intercampus reserves those for the full monthly report.

The prime-minister preference cut

The supplementary preferred-prime-minister question carries the more arresting print. Asked which leader the respondent would prefer at the head of government, 33.8% nominate Carneiro — the Socialist whose first eight months as PS leader have been spent rebuilding the bench after the 4 May 2025 election in which the AD's 80-seat haul left the PS short of a single seat on 78 — and 22.3% nominate Montenegro, the incumbent who took office after the 18 May 2025 swearing-in. Ventura sits a tenth of a point behind on 22.2%, statistically tied with the prime minister at the very moment Chega holds the casting vote on the labour reform (Trabalho XXI, the Código do Trabalho overhaul whose parliamentary vote is scheduled for Friday 20 June).

The 11.5-point Carneiro-Montenegro spread is the widest opposition-leader-over-prime-minister lead Intercampus has recorded since the November 2025 wave, and it lands at an awkward moment for São Bento. Montenegro's parliamentary survival is itself contingent on Chega's vote on the Trabalho XXI code — the very labour-market overhaul that drove the 18 June CGTP rally outside São Bento that bused Algarve workers into Lisbon for the 13:30 demonstration against the 100+ Código do Trabalho article rewrite easing dismissals, widening subcontracting and hardening the strike minimum-service frame. Carneiro's preference lead does not translate into a PS path to power on the current parliamentary seat map, but it does shift the perceived legitimacy of every confidence test the government faces between now and the autumn budget.

What the AD drop is reading

The 3.4-point AD slide is the largest one-month coalition retreat in the Intercampus series since the post-Manifestação 36-Horas tape last autumn. The barometer fieldwork spans the seven days that include the Conselho de Finanças Públicas's 6.9% despesa líquida overrun flag for 2026 — a fiscal warning that the Brussels-anchored medium-term plan is already breached on the 5.8% 2025 read — and the Helena Borges Tribunal de Contas audit of 31 benefícios fiscais covering 77% of total despesa fiscal, both of which spent the front pages of the Medialivre titles inside the fieldwork window. The Trabalho XXI parliamentary calendar, the Almina Aljustrel ribbon-cutting and the BCP €1 stock threshold print also fall inside the period.

Whether the AD retreat is a one-off correction or the start of a sustained slide will only be readable in the July barometer. What is already clear from the Carneiro preference number, the Chega's hold on the Trabalho XXI vote, and the PS's recovered four-point lead is that Portuguese politics is back into a three-block stalemate twelve months after the snap election was supposed to break it.