German Chancellor Olaf Scholz warned of threats posed by right-wing populists Saturday as he addressed a gathering of center-left European parties ahead of elections for the European Parliament in June. Scholz arrived in Romania’s capital Bucharest for a conference of the Party of European Socialists, part of the Socialists and Democrats group, the second biggest in the Parliament. Voters in the 27 EU member states go to the polls 6-9. “Right-wing populists are running election campaigns against our united Europe,” the German leader said at the Palace of the Parliament, which hosted the conference. “They are ready to destroy what we have built for the kids; they stir up sentiment against refugees and minorities.” Opinion polls indicate a significant shift to the right in the upcoming election, with the radical right Identity and Democracy group likely to gain enough seats to become the third largest group in the legislature, mainly at the expense of the Greens and the centrist Renew Europe group. Scholz said a prosperous EU capable of “getting things done” is “the best …