UK government adviser quits over race comments

An adviser in British Prime Minister Boris Johnson's office resigned on Monday after online comments resurfaced where he linked intellect to race and seemed to advocate a eugenics policy.

Andrew Sabisky once suggested that black Americans had a lower average intelligence than white Americans.

He also said in a 2014 web post that one way to stop unplanned pregnancies "creating a permanent underclass" was to force people to use contraception.

Sabisky said he was in the middle of a "giant character assassination" and was stepping down because he did not want to be a distraction.