An unexpected face was seen on the floor of the Republican National Convention on Wednesday: Paul Manafort, the former chief of the 2016 Trump campaign who was convicted of conspiracy against the United States and served two years of combined prison and home confinement before former President Donald Trump pardoned him on his way out of office. The appearance of Manafort, whose convictions stemmed from bank fraud, illegal foreign lobbying, and lying to investigators about his contacts with Russian officials, prompted a firestorm on social media, with many pointing out that he is just one of ma…