Possible bug report?
Even if you have Braun as president, when you call for new elections when a majoroty isn't formed it shows that the SPD is part of the opposition even though the president and chancelor are a member of the SPD.
Suggestion: I suggest making the player notice the new achievements obtained on a present playthrough from the ones achieved in previous playthroughs (an example would be if I get the Eiserne Front and Volksfront achievement, if I already had the Eiserne Front achievement but just obtained the Volksfront achievement, make the new one be of a different color than the old one, in this case, the Eiserne Front achievement would be in black while the Volksfront achievement would be in red or gold).