CBS News uncovered a page from Northam's yearbook at the Virginia Military Institute which had nicknames listed underneath his name. One of them was "Coonman," a racial slur.
A reporter from CBS News affiliate News 3, Brendan Ponton, went to the Eastern Virginia Medical School library in Norfolk Friday afternoon and found the page on which the photo appears.
Several political figures have called on Northam to step down, including NAACP President Derrick Johnson and 2020 presidential candidates Cory Booker, Julián Castro, Kamala Harris and Kirsten Gillibrand.
Northam's predecessor, former Gov. Terry McAuliffe, tweeted "it's Ralph to step down, and for the Commonwealth to move forward."
Democratic New Jersey Gov. Phil Murphy, the vice chair of the Democratic Governors Association who is set to take over in 2020, called on Northam to resign Friday night on MSNBC.
"I don't see the governor's got any other choice other than to step aside," Murphy said.
VA GOV 'SORRY'
BLACKFACE OR KKK?
(Big League Politics) – Public records reveal Virginia Governor Ralph Northam, who endorsed infanticide as a form of abortion on Wednesday, received almost $2 million in campaign contributions from Planned Parenthood.
Research reveals nearly $2 million in campaign contributions from the taxpayer funded pro-abortion group Planned Parenthood sent to Northam, who endorsed a bill that would allow new mothers to determine whether they wanted to keep a child after delivery, essentially legalizing infanticide.