Currently, Poland is not an independent country as it entirely depends on the United States in a political and military way, and on Germany in an economic way. It means that Poland is not able to implement an independent foreign policy.
A common pro-Kremlin narrative on “lost sovereignty”. In the case of Poland, this country is often presented as a “puppet-state” of the United States (see here and here).
The statement that the United States controls the Polish elites and political decision-making process is a conspiracy theory. Poland is a sovereign state, which shapes its own foreign and domestic policies. Moreover, it is a member of NATO and the EU and therefore contributes to the formation of the common external policies of these organisations. See another example of disinformation about Polish-American relations here.