Wprost is also planning to release tapes from a meeting between Jan Kulczyk, Poland's richest man, and Pawel Gras, secretary of Civic Platform (PO), Tusk's party, around the privatization of chemical company Ciech, according to Michal Majewski, a reporter from the magazine.
The most important player to watch right now, according to Teneo, is junior coalition partner PSL, who might use the excuse to exit their coalition with an increasingly unpopular PO.
If PO loses popularity, voters may turn to the conservative Law and Justice (PiS), led by Jarosław Kaczyński, whose tenure as Prime Minister was marked by worsening relationships with Russia and Germany. Kaczyński may be best known to Westerners as the twin brother of deceased President Lech Kaczyński.
Poland has been one of the main beneficiaries of bond investors raising their emerging markets holdings in the past few months. Movement in its 10 year bond yields, which moved up slightly to 3.685 percent as the tapes emerged, has been kept relatively low, despite the crisis, as the environment for central European bonds is still seen as "relatively benign", according to currency strategists at Citi.
"The anchor of political stability in Poland is fast eroding at a time of mounting east-west tensions over Ukraine and increasing uncertainty about the prospects for economic reform in Poland," Nicholas Spiro, managing director at Spiro Sovereign Strategy, told CNBC.com.
-By CNBC's Catherine Boyle