Does the Tempest domain’s Destructive Wrath maximize ongoing damage from a twinned Witch Bolt?

I have a multiclass tempest cleric/sorcerer.

If I twin Witch Bolt and then use Channel Divinity: Destructive Wrath, which allows me to deal max thunder or lightning damage, are both bolts impacted? I assume I can concentrate on both because it is one spell casting but is the lingering effect of witch bolt also maximized?