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Voting20 May 2026·5 min read

The EU-Mercosur Deal Was Compatible With EU Treaties — by 10 Votes

On 21 January 2026, the European Parliament voted 334-324 on the most contested trade vote of the decade. On that same day, the Inter-American Development Bank was meeting Commissioner Síkela about Mercosur implementation.

ByGovLens Data Team
10
vote margin on EU-Mercosur treaty compatibility — 334 to 324
11
abstentions that could have swung the result
19
lobby meetings on Mercosur/trade in the 30 days before the vote

Ten votes on a generational trade deal

The EU-Mercosur Partnership Agreement — negotiated over 25 years — faced a critical parliamentary test on 21 January 2026. The question: was the proposed deal compatible with EU treaties? The answer came down to 10 votes: 334 for, 324 against, 11 abstentions.

This was not a final ratification vote, but a compatibility assessment — and even at this preliminary stage, the Parliament nearly blocked it. Any 6 MEPs switching from for to against would have reversed the outcome. The 11 abstentions held the balance of power and chose not to exercise it.

Tightest trade votes in the European Parliament
EU-Mercosur compatibility (2026)
10 vote margin
UK data adequacy (2021)
15 vote margin
Sustainable corporate governance (2020)
40 vote margin
MiFID II amendment (2021)
45 vote margin

Same-day lobbying

GovLens data shows that on the same day as the vote — 21 January 2026 — the Inter-American Development Bank held meetings with Commissioner Jozef Síkela and cabinet member Hana Genorio specifically about "Mercosur Implementation and Regional Cooperation." In the 30 days preceding the vote, 9 unique organisations held 19 meetings related to Mercosur and trade agreements.

The full lobbying picture — which organisations met which officials, on what dates, about what subjects — is available on GovLens. For a vote decided by 10, the timeline of access matters.

What comes next

The compatibility vote was the easy part. The actual ratification vote — expected later in 2026 — will face even fiercer opposition from agricultural, environmental, and labour groups. If the margin holds at 10 votes, every lobby meeting, every MEP absence, and every switched vote could determine whether the EU's largest-ever trade deal lives or dies.