Every time Trump says something outrageous, or pokes a rival in the eye, so his popularity goes up.
And for Labour Party activists who have never really liked the whole, tedious governing thing and being in power (far too compromising) Corbyn is perfect.
Let's bring back maintenance grants and get rid of student loans? Easy. We'll whack up corporation tax or hit the rich with massively higher personal taxes.
Stop those thieving Mexicans crossing the Rio Grande? Simple - we'll build a giant wall all along the border...and you know what else we'll do - we'll charge the Mexican government for building it (quite why the Mexican government would foot the bill no-one has quite explained, but hey).
It seems we are in the age of the politics of simplicity.
...
Though Trump and Corbyn are from different political planets, what they offer is reassurance to those who feel angry and alienated (and there are a lot of them out there).
Critics would say what they are offering is simple solutions to thorny problems. But it is resonating. Nuance, detail and complexity seem to be so last year.