INSA Opinion Trend Analysis for July 13, 2026: Sunday Question, East–West Split, Coalition Preferences and Campaign Willingness

This is an analysis of the INSA opinion trend released on July 13, 2026, organized around four topics. It presents the current Sunday question alongside a separate look at East and West Germany, then moves on to how often respondents engage with politics, the coalition partners each party's voters prefer, and who would be willing to campaign for their own party.

■ Sunday question (Sonntagsfrage)
- Week-over-week changes in party support and which parliamentary majorities are arithmetically possible
- Results split by East and West Germany, with all of Berlin counted as the East
- How the individual parties perform in each region

■ Political engagement and coalition preferences
- How frequently respondents deal with political topics, overall and by party
- The preferred coalition partners for the voters of each party

■ Campaigning and additional data
- How willing voters are to advertise for the party they currently support
- Availability of socio-demographic breakdowns, an interactive constituency map and further analysis through the Insa subscription

This is aimed at viewers who follow German polling and coalition arithmetic on a regular basis. It offers a compact weekly readout of the survey's main figures and group comparisons, which can serve as a starting point for anyone wanting to track opinion trends over time.