By Andrew Holleran Matthew Stafford is a Super Bowl champion. The Los Angeles Rams topped the Cincinnati Bengals, 23-20, at Super Bowl 56 at SoFi Stadium in Los Angeles on Sunday night. Stafford and the Rams will get to visit President Biden and the White House later this year (assuming everything is still OK pandemic-wise). This will not be Stafford’s first White House visit, though. Back in 2012, he visited the White House as part of a literacy tour. However, he did not meet with the president (Barack Obama at the time). President Obama was not in town during the visit. Stafford’s old commen…