"German government does not fulfill the democratic duty to protect the German people from espionage on the part of other states," Hanno Harnisch said. "Such a government should be better dismissed, if it’s not able to solve this problem as a real government should do."
Secret government documents published on the WikiLeaks website earlier this month revealed the NSA had eavesdropped on 56 top German officials, including Chancellor Angela Merkel.
Die Linke responded to the revelations by calling for an emergency meeting of a German parliament committee to investigate US spying on Germany.
"Our chancellor, Mrs. Merkel, and her office should bring enlightenment and clearness to this situation, but they do not do that," he said.
"Every day WikiLeaks discovers new lists of officials being spied on, and in response Angela Merkel and her office say that they [WikiLeaks] should seriously prove it in spite of explaining and clearing the situation," the spokesman added.
In 2013, former NSA contractor Edward Snowden leaked classified documents revealing that the NSA had been gathering data on European officials and businesses, including those in Germany, for years.
Recent reports reveal that US intelligence operatives have listened to Merkel’s phone talks with France’s ex-president Nicolas Sarkozy on the Greek economic crisis, as well as private conversations with a personal assistant and top German ministers over several years.