Germany’s chancellor, Olaf Scholz, has strongly condemned a rash of attacks on politicians after a senator and former mayor of Berlin was struck over the head in a public library in the third assault on an elected official in less than a week. Franziska Giffey, a member of Scholz’s centre-left Social Democratic party (SPD) was slightly injured and briefly hospitalised after a man hit her from behind with a bag containing an unidentified hard object on Tuesday. Police have arrested a 74-year-old male suspect. “The attacks on Franziska Giffey and other politicians are outrageous and cowardly,” Scholz said on Wednesday....