"Since the last night of the Democratic National Convention in August, the Harris campaign has spent $101 million on television, radio and digital ads, according to AdImpact, compared with $47 million spent by the Trump campaign. When outside groups focused on the presidential election are included, Democrats have outspent Republicans $186 million to $138 million, according to AdImpact."
Under a billion usd per year, per side.
The winner gets steering control of a credit apparatus growing at 3,000 billion usd per year.
Nice roi!