CHANCELLOR ANGELA MERKEL, 63
Germany’s leader since 2005, Merkel is embarking on a fourth term that could see her equal the 16-year tenure of one-time mentor Helmut Kohl.
The conservative has stamped her mark on Germany’s political center ground with a pragmatic approach and willingness to adopt liberal competitors’ ideas, and has often reassured Germans by convincing them that she is on top of complicated crises. She led a hard-nosed response to the eurozone debt crisis and allowed in large numbers of migrants in 2015, a move that was divisive both at home and abroad.
In this term, Merkel will have to grapple with a possible Europe-U.S. trade war, find common ground with France and others on shaping the…