U.S. Republican senators ask Treasury for any reports on Hunter Biden

The Republican chairmen of two U.S. Senate committees have asked the Treasury Department, in a letter, for possible reports of money laundering or fraud on the business dealings of former Vice President Joe Biden's son with a Ukraine energy firm.The letter, seen by Reuters on Friday, seeks "suspicious activity reports," or documents that financial institutions file with the department's Financial Crimes Enforcement Network when a case of money laundering or fraud is suspected.It was unclear if a