If tonight’s Senate runoffs in Georgia hang in the balance then so too do the ambitions of the incoming Biden administration, which, for the moment, remains more like a Schrödinger’s presidency in terms of its potential.

Like the cat of the famous thought experiment, Biden’s embryonic presidency appears both dead and alive at one and the same time; it is both a presidency that will be hampered from the very start and one that has the power to shape America’s destiny for at least two years. Tonight we get to open the box and examine the state of the cat for the very first time.