No honeymoon: US relations, EU future challenge Merkel

FILE - In this Dec. 17, 2013 file photo German Chancellor Angela Merkel sits smiling at the government bench after being reelected during a meeting of

FILE - In this July 7, 2017 file photo U.S. President Donald Trump, left, is welcomed by German Chancellor Angela Merkel on the first day of the G-20

FILE - In this July 8, 2017 file photo German Chancellor Angela Merkel, rear, gestures while U.S. President Donald Trump, sits in front of her during

FILE - In this Tuesday, Nov. 22, 2005 file photo new German Chancellor Angela Merkel sits on the chancellor's seat for the first time in the parliamen

FILE - In this Oct. 28, 2009 file photo German Chancellor Angela Merkel, left, receives her letter of appointment from German President Horst Koehler,

FILE - In this Nov. 22, 2005 file photo newly appointed German chancellor Angela Merkel, left, takes the oath of office in the parliament in Berlin. A

FILE - In this Nov. 22, 2005 file photo German President Horst Koehler, right, shakes hands with new German Chancellor Angela Merkel, left, at Charlot

FILE - In this Nov. 24, 2005 fiel photo Germany's new Chancellor Angela Merkel chairs the first working meeting of the cabinet in the Chancellery in B

FILE - In this Oct. 28, 2009 file photo reelected German chancellor Angela Merkel, left, takes the oath of office in the parliament in Berlin, Germany

FILE - In this Oct. 28, 2009 file photo reelected German chancellor Angela Merkel, right, is applauded by Free Democratic Party leader Guido Westerwel

FILE - In this Oct. 28, 2009 file photo reelected German chancellor Angela Merkel, left, takes the oath of office in the parliament in Berlin, Germany

FILE - In this Dec. 17, 2013 file photo German Chancellor Angela Merkel, left, takes the oath of office by President of the Federal Parliament, Norber

FILE - In this Dec. 17, 2013 file photo German President Joachim Gauck, rights, hands over the letter of appointment to newly reelected German Chancel

FILE - In this Nov. 21, 2017 file photo German Chancellor Angela Merkel attends a plenary session of German parliament Bundestag in Berlin. On Wednesd

FILE - In this combo from file photo German Chancellor Angela Merkel leads the weekly cabinet meeting of her government at the chancellery in Berlin.

BERLIN (AP) — A record 171 days after Germany's election, Angela Merkel is set to pledge for the fourth time to dedicate her efforts to Germans' well-being and "protect them from harm."

Merkel has 12 often-turbulent years as chancellor behind her. But fulfilling her oath of office may be even harder this time, with U.S. President Donald Trump declaring that "trade wars are good" and threatening German automakers, a fractious European Union seeking to shape its future and a potentially wobbly German governing coalition.

Parliament is due to re-elect Merkel Wednesday, nearly six months after Europe's biggest economy voted. The alliance of her conservative Union bloc with the center-left Social Democrats can't expect a honeymoon.