Another CBC article with a lot of comments. At least one comment posted says that this his changed his vote to a non-Liberal candidate. I've included an excerpt below, or you can go to the link for the article. Looks like meddling in election is now a common thing.

Sonar

Why Obama might look north and feel empathy for Trudeau

Trudeau's re-election challenges are similar to Obama's, but also more complicated

Aaron Wherry · CBC News · Posted: Oct 17, 2019 4:00 AM ET

https://www.cbc.ca/news/politics/obama-trudeau-endorsement-analysis-wherry-1.5322823

It is not wholly surprising to learn that Barack Obama hopes Justin Trudeau does well in next week's federal election. Most of us hope to see our friends succeed in their chosen endeavours.

But the former leader of the free world went beyond wishing a friend well on Wednesday when he decided to endorse the leader of the Liberal party of Canada.

That could have something to do with how Obama views both Trudeau's political agenda and his own post-presidential role in global politics.

Trudeau's rivals, and perhaps even some unaligned Canadian voters, might raise an eyebrow at a foreign public figure offering his opinion (though Conservative leader Andrew Scheer wasn't shy about commenting in 2016 on the United Kingdom's membership in the European Union) on a Canadian election.

But Obama might also look north and feel a slight twinge of empathy.

Four years after he came to office on lofty promises of hope and change, Obama's re-election campaign in 2012 had to fight through a sense of general disappointment. He won that fight and left behind a record that included an expansion of medicare, new regulations on greenhouse gas emissions, an economic recovery from the Great Recession and a number of other progressive reforms, but also nagging questions about whether he had somehow failed to live up to his potential.

None of his efforts prevented Donald Trump from winning the presidency. And Obama's legacy is now contested, from the political left, by potential successors who insist the Democratic party must move further and faster than Obama was able or willing to.

So if the former president is paying any attention to this Canadian campaign, he might be able to relate to Trudeau's current situation.

Obama's post-Trump approach to the world

Regardless, Obama's intervention on Wednesday fits with his emerging post-Trump approach to international politics, in which Obama has sought to use his platform and existing political capital to support like-minded leaders.

During his last trip to Europe as president in November 2016, Obama told reporters in Berlin that if he was German he would vote for Chancellor Angela Merkel — his quote was later printed on posters for Merkel's political party, the Christian Democratic Union.

Then, less than four months after leaving office, Obama recorded a video to endorse Emmanuel Macron's candidacy for the French presidency.

(For what it's worth, both Merkel and Macron went on to win their elections.)

The underlying message of those endorsements could be that national elections are no longer purely domestic affairs; that the world is in the midst of a struggle over the future direction of liberal democracy and every election is a piece of that larger conflict.

Around the same time, Obama was publicly suggesting he'd vote for Merkel, he was privately telling Trudeau — who he had already spoken of as a kindred spirit — that the prime minister would have to shoulder additional responsibility in a world where Donald Trump was president of the United States.

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