US President Joe Biden believes that the changes in Poland's political environment following the coming to power of Prime Minister Donald Tusk's government are positive. Source: Biden, whose response was tweeted by Polish Radio correspondent Marek Wałkuski, as reported by European Pravda Details: The correspondent pointed out that when he asked Biden to comment on the political changes in Poland and the coming to power of a government more sympathetic to the European Union, he replied: "I think