The Iowa caucuses have long been nearly useless as a measure of Americans’ preferences for the next president. This year it has been more useless than usual.

The next star of the Democratic contest will be New Hampshire, whose people are also overwhelmingly white and whose Democrats are more liberal than average. At least there, ordinary busy people will be given an entire day to cast a primary ballot in private.

Mike Bloomberg skipped Iowa, and he’ll be absent from New Hampshire, South Carolina and Nevada. He’s putting his chips on Super Tuesday, March 3, when 14 states vote and 40% of the Democratic delegates are chosen. And he has an unlimited supply of chips.

This is not to say that the strange brew of circumstances in Iowa didn’t leave some tea leaves at the bottom of the cup. They did and obviously made Bloomberg smile.

Caucuses give advantage to candidates with an aggressive activist base. That would be Bernie Sanders. Yet the Vermont senator didn’t run away with it.

The results are showing moderate Pete Buttigieg, the former mayor of South Bend, Ind., edging out Sanders. That’s despite Buttigieg’s having entered national politics only a year ago with virtually no name recognition and Sanders’ having outspent him by at least $15 million.

Small wonder that Bloomberg announced the day after Iowa that he would double spending on a campaign whose sums were already astronomical. The multibillionaire former mayor of New York City, a moderate, is also nationally famous. And he will not be outspent. Not by any Democrat. Not by President Trump.

Bloomberg can read tea leaves. And so, one assumes, did many of the estimated 2,000 people who filled Philadelphia’s National Constitution Center for a Bloomberg rally as the numbers from Iowa were still dribbling in.

Here was a showcase event — that was over-reported, speculated about endlessly and enormously expensive given how little the results would reveal. Still, the state’s Democrats couldn’t put together an app capable of counting.

This just underscores the long-standing fears that Democrats are being badly outmatched by Trump’s data-mining operations. This is the ability to locate and target specific groups (non-college-educated white women, for example) and beam carefully tailored ads and social media posts in their direction. It was key to Trump’s victory in 2016.

Trump has already placed $36 million in digital ads on Google and Facebook. That’s more money than Sanders, Buttigieg, Joe Biden and Elizabeth Warren have spent combined.

But when it comes to data, Bloomberg will not be outmatched. He built his financial services empire (from scratch) on collecting and delivering data. That’s where his $60 billion fortune comes from. He’s already close to surpassing Trump on Facebook and Google spending — if he hasn’t already done it.

Bloomberg is building his own digital-ad weapon with the wonderful name of Hawkfish. Silicon Valley hotshots are running it. And they are expected to be handed $100 million or more to cover a massive national digital ad campaign.

On Super Tuesday, Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, Vermont, Virginia and Democrats living abroad will hold their primaries. That’s a good geographic and demographic sampling of the American electorate, don’t you think? And it’s an event for which advertising will matter.

Froma Harrop is a syndicated columnist.