Outgoing US President Donald Trump has reportedly banned his staff from mentioning Richard Nixon's resignation in his presence, according to a CNN report.
With less than a week until Inauguration Day, Trump has been abandoned by many conservative allies, with some Americans calling for his resignation following last week's violent Capitol riots.
According to CNN, Trump has been "consumed" by his presidency's unravelling in his final days in office, according to the people around him.
"[Trump] has made clear to aides in separate conversations that mere mention of President Richard Nixon, the last president to resign, were banned," CNN reported on Friday (NZ time).
Further, according to the report: "He told one adviser during an expletive-laden conversation recently never to bring up the ex-president ever again."
Nixon is the only US president to have resigned from office, leaving after being disgraced by the Watergate Scandal, where he was caught trying to spy on opponents and cover up his involvement.
Nixon resigned because he did not wish to be impeached.
An ABC News/Ipsos poll released on Sunday revealed that over half of Americans (56 percent) believe that Trump should be removed from office before his term ends. A large majority (67 percent) of respondents blamed Trump for the Capitol riots.
Senator Pat Toomey, a conservative Trump supporter until recently, called for the president to resign on Monday (local time), labelling his behaviour since the election "outrageous".