German Chancellor Angela Merkel is vowing to keep Europe united as leaders seek to fill one of the European Union's top jobs — stressing that she wants to keep an increasingly skeptical Britain in the EU, the Associated Press reports.

Choosing a new president for the EU's executive Commission has become a political headache for Merkel as well as British Prime Minister David Cameron, the AP notes. The conservative European People's Party, which includes Merkel's bloc, finished first in European Parliament elections in which it campaigned for former Luxembourg premier Jean-Claude Juncker to get the job.

However, Britain opposes Juncker, while Merkel has drawn criticism at home for appearing cool toward her fellow conservative in the days after the election. Merkel said Monday the process will "take time."