Anders was the only MP to oppose giving the former South African president honorary Canadian citizenship in 2001. He denied the House unanimous consent for a motion on the matter, but MPs later voted and passed it anyway.
Anders wasn't in the House of Commons Thursday night when tributes to Mandela were read. Mandela died yesterday at age 95.
His office didn't return phone calls requesting comment. But in an email, Anders said he wishes peace for the people of South Africa.
"If you are looking for another perspective you may be interested in the obituary that David Horowitz wrote for the Freedom Centre," he said in an email to CBC News.
The blogpost refers to Mandela as a terrorist, something Liberal MP John McCallum accused Anders of calling Mandela back in 2001.
"But if a leader should be judged by his works, the country Mandela left behind is an indictment of his political career, not an achievement worthy of praise – let alone the unhinged adoration he is currently receiving across the political spectrum," Horowitz goes on to write.
"South Africa today is the murder capital of the world, a nation where a woman is raped every 30 seconds, often by AIDS carriers who go unpunished, and where whites are anything but the citizens of a democratic country which [honours] the principles of equality and freedom," he wrote.
'Let history be the judge'
Asked whether that means he agrees with the blogpost, Anders responded that he has spoken before about Mandela and "will let history be the judge."
The Prime Minister's Office didn't immediately respond to a request for comment.
Last year, Anders told a reporter he thought NDP Leader Tom Mulcair had hastened the death of former leader Jack Layton in 2011.
"I actually think one of the great stories that was missed by journalists was that Mr. Mulcair, with his arm twisted behind the scenes, helped to hasten Jack Layton’s death,” Anders told iPolitics.ca.
“It was very clear to me watching the two of those gentlemen in the front benches, that Jack Layton was ill and that Mr. Mulcair was making it quite obvious that if Jack wasn’t well enough to fight the campaign and fight the election that he should step aside, and that because of that, Mr. Layton put his life at risk to go into the national election, and fight it, and did obviously an amazing job considering his state of health, and that he did that partly because of the arm-twisting behind the scenes by Mulcair and then subsequently died,” he said.