Democrats have a difficult task in 2020, writes Ezra Klein.

Democrats have a difficult task in 2020, writes @ezraklein.

Trump is the incumbent amidst, for now, a growing economy. Presidents almost never lose under those conditions.

And they've settled on two risky choices to out-vote Trump's base:https://t.co/nZ5henAzhi

— Vox (@voxdotcom) March 9, 2020