No...I think he becamd a US citizen. A few years back now. Maybe not 7, but it’s been a while.
I could be wrong but I think I read that he got naturalized.
Mark is the author of After America, which was a Top Five bestseller in the United States and a Number One bestseller in Canada; America Alone: The End Of The World As We Know It, a New York Times bestseller in the United States and a Number One bestseller in Canada; and his most recent bestseller, The [Un]documented Mark Steyn.
"A Marshmallow World", his Christmas single with Jessica Martin, reached Number Seven on Amazon's easy listening bestsellers, and Number 41 on their main pop chart. Their subsequent full-length Christmas album, Making Spirits Bright, reached Number Four on the jazz chart. Mark's latest CD is his cat album, dedicated to his own beloved cat Marvin: Feline Groovy: Songs for Swingin' Cats was a Number One jazz bestseller and a Top 30 album on Amazon's pop chart.
Steyn's human rights campaign to restore free speech to Canada led to the repeal by Parliament of the notorious "Section 13" hate-speech law, a battle he recounts in his book Lights Out: Islam, Free Speech And The Twilight Of The West.
Mark is also a popular guest host of America's Number One radio show The Rush Limbaugh Program, as well as the top-rated Fox News TV show Hannity. In Canada, he can be heard on AM640's John Oakley Show in Toronto. In 2017 he began his own Mark Steyn Show.
From: steynonline.com/bio
Notice in the first sentence of the above bio, he was introduced to the US Senate in 2015 by fellow Canadian Ted Cruz.