Germany’s ambassador to the U.S. has warned that President-elect Trump’s administration will “undermine” democratic principles with a “maximum disruption” agenda, according to a report.Reuters reported that it viewed a confidential briefing document signed by Ambassador Andreas Michaelis that describes the incoming Trump agenda as “a redefinition of the constitutional order – maximum concentration of power with the president at the expense of Congress and the federal states.””Basic democratic principles and checks and balances will be…