Tom Steyer was going to spend a billion dollars trying to get Trump impeached as the key issue of the 2020 election, when everyone kept telling him this was stupid because you can just beat Trump in 2020, and if he really wanted to draw attention to stuff he should run for President because the free media is worth way more as they'll fawn over every billionaire, look at Howard Schultz's coverage when he just suggested he might run, look at Bloomberg AND Trump playing coy for years yet getting shitloads of coverage before they finally ran, etc.
Then the Ur Billionaire himself got into the race.