U.S. President Donald Trump's top trade representative faces tough Senate questions as lawmakers press for answers on ongoing trade talks; Canada's premiers discuss looming U.S. tariffs while addressing energy, health care and national unity at their meeting in P.E.I; Tariff tensions have clouded the Gordie Howe bridge opening as new details emerge about Canada's proposed agreement with the U.S. 

<p>U.S. President Donald Trump's top trade representative faces tough Senate questions as lawmakers press for answers on ongoing trade talks; Canada's premiers discuss looming U.S. tariffs while addressing energy, health care and national unity at their meeting in P.E.I;&nbsp;Tariff tensions have clouded the Gordie Howe bridge opening as new details emerge about Canada's proposed agreement with the U.S.&nbsp;</p>

CTV National News is Canada's most-watched national news program. Now you can stay up to date Monday to Sunday with the CTV National News Podcast, delivered nightly. Listen to Canada’s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.

<p>CTV National News is Canada's most-watched national news program. Now you can stay up to date Monday to Sunday with the CTV National News Podcast, delivered nightly. Listen to Canada&rsquo;s most trusted newscast featuring stories from here and around the world with a perspective that is distinctly Canadian and backed by the #1 news organization in Canada.</p>