The Pollcast: Super Tuesday could be decisive for Donald Trump, Hillary Clinton

The CBCPollcast, hosted by CBC poll analyst and ThreeHundredEight.com founder ric Grenier, explores the world of electoralpolitics,political polls and the trends they reveal.

Super Tuesday the moment the American presidential primaries can, for all intents and purposes, be decided is next week. And it could be the moment when Hillary Clinton and Donald Trump take an insurmountable lead over their rivals.

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• Keith Boag: Trump loss next week in Texas could still boost his chances

Republican primaries and caucuses will be held in13 states on Tuesday, where about one quarter of all delegates at stake in the national racewill be awarded. On the Democratic side, 11 states along with American Samoa will be casting ballots to select about one-fifth of all delegates.

To break down what is going on in the run-up to Super Tuesday, and what it signals for the broader state of American politics,hostricGrenieris joined by theCBC'ssenior reporter inWashington, KeithBoag.

Super Tuesday could be a watershed moment for Trump and Clinton. Trump leads in almost all of the states voting next week, and could rack up a significant delegate lead over a divided Republican field. Ted Cruz may win only Texas, if that. Marco Rubio may win no states at all.

With many of the primaries and caucuses taking place in the southern states, Clinton's advantage among African Americans could propel her to some very big victories. Polls suggest her lead in many of these states is in double-digits.After losing toBernie Sanders in New Hampshire and beating him only by narrow margins in Iowa and Nevada, Clinton's campaign badly needs the boost a series of big victories will give her.

But has Sanders's surprising strength had an impact on how Clinton is running to be president? And what do Trump's repeated victories mean about the mood of the American electorate?

The CBC Election Pollcast20:04Super Tuesday preview

With one of the U.S. primary seasons key dates coming up next week, weve invited Keith Boag, the CBCs senior reporter in Washington.

Listen to the full discussion above or subscribe to The CBCPollcast and listen to past episodes.

You can follow ric Grenier and Keith Boagon Twitter.