Under Ontario election rules, any group running political ads during a provincial election has to register as a third party once it spends more than $500. To date, 53 groups running Facebook ads during the campaign have registered with Elections Ontario. ProPublica's Facebook ad collector allows CBC News to see the ads running on Facebook — and to determine which voters the ads are targeting. Some of the groups running the ads have proven to be difficult, if not impossible, to trace. This is one of several Facebook ads being run by the unregistered group Ontario for Ontarians.

Source: CBC News June 06, 2018 07:52 UTC