If Kamala Harris wins the nomination, who could be her running mate?

The vice-president is in pole position to be the Democratic nominee - and thoughts have turned to a possible No 2

A Democratic party ticket led by Kamala Harris seems increasingly likely as scores of high-profile elected Democrats line up to endorse her for president in the wake of Joe Biden's withdrawal from the race.

In Biden's announcement that he would no longer pursue a second term, he thanked Harris for being an extraordinary partner in all this work", and later, in endorsing her, called his choice to run with her in 2020 the best decision I've made".