Further attacks on politicians in Germany have rattled the country and prompted renewed outrage from leaders, after Berlin’s former mayor was assaulted in a library on Tuesday afternoon. Franziska Giffey, the leader of the Social Democrats (SPD) in Berlin who currently serves as the city’s economy minister, was treated at hospital for slight injuries after being hit over the head with a heavy bag. In a separate attack on Tuesday night, a Green Party council candidate was assaulted and spit on by two assailants while putting up campaign posters. Those assaults are the latest in a string of atta…