The 500,000 eligible, Muslim voters are likely to reward Chancellor Gerhard Schroeder's Social Democrats (SPD) in the September 18 parliamentary election, for its anti-Iraq war position and pro-Muslim policies.
Chancellor Gerhard Schroeder is a prominent figure within Social Democratic Party (SPD).
The except is implicit that Gerhard Schroeder is a prominent figure within the SPD. I think the system has trouble understanding his inferred position.