Poland names governing party MP as new treasury minister
Czerwinski, a member of Kopacz's Civic Platform party, is currently a head of a parliamentary energy panel.
The change is part of a broader government re-shuffle ahead of a parliamentary election later this year. Kopacz is trying to improve her party's ratings after it suffered an unexpected defeat in presidential elections last month.
(Reporting by Marcin Goclowski; Editing by Christian Lowe)