The possibility of Russian interference in German elections is "not too comforting," a former German defense minister told CNBC, adding that polls later this year will be a testing ground as relations are tense.
While both Chancellor Angela Merkel and Russian President Vladimir Putin have agreed to the necessity of dialogue, "they mainly agree to disagree on, more or less, every single topic that was at stake – maybe Syria, maybe the Ukraine, maybe the question of potential interference in elections," according to Karl-Theodor Zu Guttenberg, who served as minister of defense from late 2009 to early 2011 in a Merkel-led government. He resigned over a plagiarism scandal.
This potentially means areas of contention between both countries will not be resolved, raising the possibility of interference by Russia in the upcoming elections in September. With no proof of the opposite, Guttenberg told CNBC's Squawk Box . He added that "there is some rather harsh discussion ongoing in Germany [on] whether this is accelerating."