That's fairly an understatement.

First he copied wide sections of his Ph.D. thesis.
http://www.spiegel.de/international/germany/plagiarism-accusations-widen-guttenberg-copied-work-of-german-parliament-s-research-department-a-746573.html

Then he tried to reemerge into German politics with bad excuses and accusations among his colleagues
http://www.dw.de/disgraced-former-minister-guttenberg-explores-return-to-politics/a-15653164


(Sry, couldn't find better articles in English. There's a ton of 'em in German though )