It's still difficult to see how the Republican race might coalesce around a serious challenger to Trump, and in the meantime the Donald should start thinking about possible VP picks. And here's a mould-busting thought. Given that Hillary Clinton may finally have consigned her own opponent to the position of supporting act in the Democrat race, through a decent - though hardly mind-bending - victory in Nevada, there is an appealing insurgent available for other political duties.
Bernie Sanders is as much a maverick in his way as Trump, and his political positions are more nuanced than the campaign has really let on. Trump, meanwhile, picked up plenty of moderates and independents in the South Carolina vote. What about the power of a doubly insurgent campaign to clear up on American voters' detestation of "politics as normal"? With this being the year of the challenger, could a Trump-Sanders ticket be either unbelievable or beatable?