He is expected to face questions on the crisis in Ukraine.
CBCNews.ca is carrying the event live starting at 11 a.m. ET.
Russian President Vladimir Putin signed a treaty Tuesday to annex Crimea, describing the move as correcting past injustice and a necessary response to what he called Western encroachment upon Russia's vital interests.
Putin said, in an emotional 40-minute speech, "in people's hearts and minds, Crimea has always been an integral part of Russia."
Prime Minister Stephen Harper announced on Monday further sanctions against Russians and Ukrainian officials.
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