Germany’s federal elections occur every four years to fill the 736 seats of the Bundestag. Voters cast two ballots: the first (Erststimme) selects a constituency representative, while the second (Zweitstimme) determines each party’s share of proportional seats. The mixed‑member proportional system combines direct mandates with party list allocations, ensuring both local representation and overall proportionality.
The electoral framework is bounded by a 5 % threshold or the win of at least three constituency seats, mechanisms designed to curb fragmentation. The Federal Returning Officer administers the vote, and the Constitutional Court can adjudicate disputes. These rules set the stage for interpreting outcomes, but they do not, on their own, predict policy direction.