The Trump campaign has spent months setting expectations low for Joe Biden, from nicknaming him “Sleepy Joe” to outright questioning his mental capacity. Now, on the eve of the first Presidential debate, the pressure is on for the challenger to show up sharp and steady — and do much more than position himself as the “not Trump” of the election.

Also top of mind: Trump’s refusal to commit to a peaceful transfer of power. If he loses in November, the incumbent says “we'll have to see what happens.” But if he refuses to accept the results, the U.S. will have to confront a historic first in extremely divided times.

To make sense of this and more, Elamin calls up Kadia Goba, politics reporter for Buzzfeed News who has been covering the Trump campaign for the last few months.