OTTAWA — Conservative leadership candidate Kellie Leitch is asking whether the federal government should screen potential immigrants and refugees for anti-Canadian values.

The question comes in a survey on a number of issues which was emailed to people who signed up for news from her campaign.

During the 2015 federal election campaign, Leitch helped promote a controversial promise to open a tip line for so-called barbaric cultural practices, to help the RCMP enforce a law aimed at cracking down on forced marriages and keeping polygamists out of Canada.

