Hello and welcome to the Intelligence on Economist Radio.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

In America, the Democrats' fourth debate is tonight.

We'll take a look at what to expect and we'll examine a far quieter battle.

That for the Republican nomination and its most unlikely candidate.

And the best marathon runner in history shattered his own record this weekend,

finishing in less than two hours.

Elliott Kipchogay's triumph isn't one for the record books,

because he had help from pace runners.

But he may have had much more help from his shoes.

As President Donald Trump's impeachment inquiry marches on,

Democrats are vying for the chance to take him on in next year's election.

Tonight, a dozen candidates will cram on stage for the fourth primary debate.

As second-tier candidates fight to get noticed,

under the spotlight will be the two frontrunners.

Massachusetts Senator Elizabeth Warren.

Our democracy is paralyzed.

And why?

Because giant corporations have bought off our government.

And former Vice President Joe Biden.

And that's why we have to win this time.

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