Merkel's decision whether to govern with the social-democrats or with liberals and Greens will have an impact on the future of the EU.
Merkel's re-election is expected to revive the Franco-German EU motor, but the German leader and France's new ruler are still searching for a common vision.
Eagerly awaited Brexit speech was foggy on details, but May pledged to honour financial commitments while calling for a two-year transition deal after the UK left.
Hungary and Poland have said they "don't want a mixed population", amid a tug-of-war with the Commission on migrants and rule of law.
Thousands of Catalans have taken to the streets, in protest against the Spanish government's efforts to prevent the independence referendum. Both sides know that violence would go against their cause.
Dutch caretaker deputy minister for infrastructure and environment Sharon Dijksma told MPs on Friday that the Netherlands will appeal a recent court ruling, which banned the government from adopting measures that could further decrease air quality. The ban was "open to interpretation", Dijksma wrote. Meanwhile, she would also fight air pollution by coming up with an improved version of the Dutch air quality plan, as the court demanded.
According to information obtained by EUobserver, national governments have dismissed a proposal by MEPs to make a system for donating would-be wasted food to charity.
Angela Merkel, the EU's most powerful leader, is running for a fourth time in Germany's election on Sunday. But what has changed in Europe over the 12 years of her chancellorship?
British prime minister Theresa May proposed "around" a two-year-long transition period, based on current arrangements, after Brexit in 2019, to give enough time for businesses and public services to prepare for the changes. "During the implementation period, access to one another's markets should continue on current terms and Britain also should continue to take part in existing security measures," she told an audience in Florence, Italy, on Friday (22 September).
Health minister Konstanty Radziwill explains why he thinks Warsaw is the best future location for the European Medicines Agency.
Facebook chief Zuckerberg has said he is helping to stop Russia from interfering in the German election, the way it did in the US and France.
Spain's apparent refusal even to allow for a dialogue on the referendum is giving the Catalan government less and less of an incentive to aim for a compromise.
In a speech she will deliver in Florence, Italy, on Friday afternoon, UK prime minister Theresa May will call on EU leaders' "profound sense of responsibility" to make Brexit "work smoothly and sensibly", according to British media. She will ask them to be "imaginative and creative". On Thursday, EU negotiator Michel Barnier warned that the UK, above all, should "settle the accounts. No more, no less."
Catalan leader Carles Puigdemont said on Thursday that his government has "contingency plans" to organise a referendum on independence on 1 October, despite the Spanish government's efforts to prevent it. The vote has been ruled illegal by the Spanish constitutional court, but Puigdemont said he would continue anyway because he has "the support of the vast majority of the population" in the region.
Two days ahead of German federal elections on Sunday, Angela Merkel's CDU/CSU party is credited with 36% of voting intentions, well ahead of Martin Schulz's SPD (21.5%). The far-right AfD party follows with 11%, ahead of the liberal FDP (10%). This would leave only two possible coalitions: CDU/CSU with SPD, or a so-called Jamaica coalition between the CDU/CSU, the FDP and the Greens, the Sueddeutsche Zeitung newspaper explains.
Ambassadors of member states agreed on Thursday to reinforce EU sanctions on North Korea after the recent series of nuclear tests and missiles launches. The measures, which have to be approved by EU foreign ministers on 16 October, include a ban on North Korean oil exports and investments, as well as a travel ban and freezing of assets for eight officials. This follows another set of sanctions last week.
EU leaders will discuss deepening monetary union at a special summit "in December", European Council head Donald Tusk said on Thursday. The meeting, to discuss creating a eurozone budget and finance ministry and to advance steps on banking union, is to be held in an "inclusive format", Tusk said, indicating that non-members of the 19-nation euro bloc, except the UK, would be welcomed. The talks are part of post-Brexit reforms.
A day before UK PM Theresa May sets out her Brexit strategy in Florence, top EU negotiator Michel Barnier told lawmakers in Rome: there can be no transitional deal for the UK without a withdrawal agreement.
Faced with the growing tension between the Spanish and Catalan governments, the member states and EU institutions would prefer not to get involved.
UK prime minister Theresa May is preparing to ask the EU for a two-year transition deal after Britain leaves the bloc in 2019, the BBC reported, amid final tweaks to her speech in Italy on Friday. She will call for deeper ties than Canada has with the EU (free trade only), but fewer obligations than Norway has (such as free movement of EU migrants), the BBC said.