German Chancellor Friedrich Merz canceled a planned phone call with US President Donald Trump on Wednesday, hours after Trump publicly celebrated a regional election win by Germany’s far-right AfD party.A spokesman for Merz declined to give a reason for the cancellation, but noted in response to questions from journalists that it was not due to scheduling conflicts.For all the latest headlines follow our Google News channel online or via the app.Trump, in a post on his Truth Social platform, hailed the “really big night” for the AfD.“They finally got tired of the absolutely horrible Immigration rules and regulations which have hurt Germany so badly,” Trump wrote on Tuesday night Washington time.Merz’s spokesman did not directly respond to Trump’s comments, but noted that the chancellor had frequently objected “in general terms” to “interfering in or commenting on the domestic political situation, particularly regarding elections.”A new date for a phone call between the two leaders had not yet been set, the spokesman added.The AfD -- which Merz has repeatedly attacked as racist and a threat to democracy -- scored a breakthrough win on Sunday in a regional election in the eastern German state of Saxony-Anhalt.At the end of his message, Trump also wrote the acronym “MGGA,” an apparent pro-AfD play on his own “MAGA” slogan standing for “Make Germany Great Again.”Other figures in Donald Trump’s political orbit, including a former ambassador to Germany and billionaire Elon Musk, also publicly celebrated the AfD’s victory.Musk has openly endorsed and supported the AfD for several years, including while serving in the Trump administration as the head of the “DOGE” effort.Musk made an appearance by video at an AfD campaign rally during German national elections in early 2025, which Merz’s center-right CDU/CSU bloc won.Read more: How did Germany’s far-right AfD achieve a historic electoral victory?