Complex sentence: He has falsely claimed to be a Nobel Prize nominee both before and after the 2003 disciplinary action, despite the fact that the person who nominated him, (U.S. Representative Michael Bilirakis (R-FL)) was not eligible to do so.
Split into simpler sentences: He has falsely claimed to be a Nobel Prize nominee both before and after the 2003 disciplinary action. The person who nominated Hammesfahr, (U.S. Representative Michael Bilirakis (R-FL)) was not eligible to do so.