U.S. son can't see sick mother in Canada because he's not 'immediate family' under current regulations

Mary Goldman says she was shocked when the Canada Border Services Agency confirmed that her brother wouldn't be allowed in the country because he does not fall under any of the categories for a family exemption, even though their mother is Canadian.

source https://www.cbc.ca/news/canada/american-blocked-from-seeing-mother-1.5632928?cmp=rss