A really tricky question for politicians

Let's be honest, for politicians, there are difficult questions like:

-How would you solve world hunger?

-How would you solve the West Lothian question?

-What target would you set for carbon emissions for 2025?

....and then there are really, really tough questions like:

-How many houses do you own?

....And of course, US Presidential candidate John McCain couldn't answer such a tricky poser, so, when asked, he said to Politico:

I think — I'll have my staff get to you. It's condominiums where — I'll have them get to you.

Give him a break. It's a really difficult question. And he's only running for President of the USA.