Washington (AFP) – Federal agents investigating Hunter Biden, the son of US President Joe Biden, believe they have evidence of tax crimes and it will be up to a prosecutor to decide whether to bring any charges, The Washington Post reported Thursday. The newspaper, citing people familiar with the case, said investigators also believe they have sufficient evidence to charge the younger Biden with making a false statement in connection with a gun purchase. It would be up to the US Attorney in Delaware, an appointee of former president Donald Trump, to decide whether to file charges against the 5…