Polish Prime Minister Donald Tusk lashed out on Thursday at Republicans in the US Senate for blocking a bill providing further aid to Ukraine, Poland’s embattled neighbour. “Dear Republican Senators of America. Ronald Reagan, who helped millions of us to win back our freedom and independence, must be turning in his grave today. Shame on you,” Tusk wrote in English on the social media platform X, formerly Twitter, in reference to the 1981-89 Republican president. On Wednesday, Republican senators blocked a bill put forward by the Democrats and supported by President Joe Biden that would have pr…