Germany’s conservative chancellor candidate, Friedrich Merz, has advocated for Europe to show strength and take a tough stance during Donald Trump’s second term as US president. “This will make an impression in America,” Merz told public broadcaster ZDF’s talk show hosted by Maybrit Illner on Thursday evening. He said Europe must speak with one voice. “Donald Trump is not impressed by weakness, only by strength, even opposition.” This, he said, is how Europe could deal with the new government in Washington. Merz is eyeing Germany’s top political job after the government of his rival, Social De…