By Tony Owusu The Biden administration is looking to hold up an $11.3 billion USPS truck contract because the deal isn’t green enough. President Joe Biden’s push to combat climate change is a wildcard that could turn fortunes around of otherwise unknown companies operating in the clean energy space for better or worse. But that political involvement can lead to complications and headaches for the “winners” of government contracts. Enter Oshkosh Corp (OSK) – Get Oshkosh Corp Report. The specialty vehicle manufacturer could be in limbo after the Biden administration urged the United States Posta…