Following the attacks in Paris, French President François Hollande has a completely different set of concerns. France needs more police, more security personnel and a greater emphasis on integration. He says that security is more important than the Stability Pact.

Gerhard Schröder offered a clear German NEIN to an American president's war of aggression that was in violation of international law. That took courage. Ms. Merkel did not join him at the time. If Trump now begins to take the wrecking ball to our set of values, we must say clearly: That is not our approach.

For German Social Democracy, Europe is vital to the national interest.

Businesses will only invest in Greece if three conditions are fulfilled. First, there must be a clear commitment to the euro. No businesses will invest if they have to fear that Greece will leave the euro zone at some point. Second, the Greek government must be prepared to work together with European institutions in order to restructure the country.

Ms. Merkel is avoiding retirement issues. She simply doesn't want to do anything, although she knows that doing nothing means that real pensions will fall. That is preprogrammed old-age poverty. When it comes to wage fairness: It was Ms. Merkel herself who blocked the establishment of a right to return to a fulltime job after going part time for a period. Yet everyone keeps saying that our platform is identical to that of the conservatives. It's crazy.

[Helmut] Kohl said Europe must return to being a community committed to stability and the rule of law.

The stubborn stance of some European governments on the refugee question is a reprisal less aimed at Angela Merkel or (Vice Chancellor) Sigmar Gabriel than at certain people on Wilhelmstrasse in Berlin.