"Mr. Ambassador Rose, allies should respect, not lecture, each other," Prime Minister Donald Tusk wrote on the X social media platform.
"At least this is how we, here in Poland, understand partnership," he added.
The US envoy, Tom Rose, said earlier on Thursday on X that "effective immediately, we will have no further dealings, contacts or communications" with Poland’s parliamentary Speaker Włodzimierz Czarzasty.
Czarzasty, a left-wing politician and Speaker of Poland’s lower house of parliament, said earlier this week that he would not support efforts to nominate Trump for the Nobel Peace Prize, arguing the US president did not deserve the award.
He argued that Trump was destabilising international organisations and pursuing "transactional politics" backed by "the use of force.”
He also defended Polish soldiers who fought alongside US forces in Afghanistan after Trump last month downplayed the role of NATO allies in the war.
Rose said Czarzasty "has made himself a serious impediment" to Washington's "excellent relations" with Tusk and his government.
"We will not permit anyone to harm US-Polish relations, nor disrespect President Donald Trump, who has done so much for Poland and the Polish people," Rose wrote.
Czarzasty responded on X, saying that, in keeping with his values, he had defended Polish soldiers on foreign missions and opposed Trump’s Nobel nomination.
He added that he held "constant respect for the United States as a key partner for Poland."
He said he regretted Rose’s statement but would not change his position "on issues fundamental for the Polish people."
The exchange comes as the office of Polish President Karol Nawrocki, a conservative ally of Trump, has alleged that Czarzasty may have "social and business ties" to Russia.
The presidential office said the issue would be discussed at a meeting of the National Security Council scheduled for February 11.
Czarzasty rejected the allegations on Wednesday, saying he had been thoroughly vetted by Poland’s security services before being granted access to state secrets.
Though he does not wield executive power, the lower-house Speaker is widely regarded as Poland’s second-highest state official, after the president.
(gs)
Source: IAR, PAP, polskieradio24.pl