Hundreds of Nova Scotians gathered in HRM to meet Conservative Leader Andrew Scheer during his campaign stop.
This comes after the Globe and Mail first reported Scheer and his siblings hold dual citizenship with the US through his father.
During his visit, Scheer addressed the issue, saying he's in the process of renouncing his US citizenship.
"Like millions of Canadians, one of my parents was born in another country," he said. "I met with representatives from the embassy in August and announced that I was renouncing my citizenship and I've submitted my paperwork to start that process."
When asked why he didn't reveal his dual citizenship publicly before, Scheer said: "No one's ever asked me before".
Scheer spoke in the Halifax West riding which is a Liberal stronghold as current house speaker Geoff Regan has held on to that seat since 2000.
Scheer said he believes many seats will change this election.
"There are lots of seats all across Atlantic Canada that I am confident are going to turn Conservative," said Scheer.
The federal election is set to take place Oct. 21.