In an interview with the Financial Times, Michael Bloomberg — the three-term mayor of New York City and the founder of the business information behemoth that bears his name and made him a multibillionaire — is actively considering a run for president of the United States as an independent.

Now, as someone who worked as a policy adviser on Bloomberg’s first campaign for mayor, I think he’d run a smart campaign and would make a great president. I just don’t think he’ll actually BE president.

See, our political system makes it virtually impossible for an independent to overcome the formidable Electoral College to win the White House.

A candidate must win 270 of the 538 electoral votes at stake. And those are won by winning the popular vote or a plurality of that vote in each state on Election Day. But in a three-way race, what happens if the candidates split the vote and none hits the magic number of 270? Therein lies the biggest obstacle for Bloomberg.

If no one secures 270, the election then moves to the House of Representatives, where it is highly likely the current Republican majority would elect the GOP nominee. That’s because 33 of the 50 states have Republican-majority House delegations.

Also, there is no set way for members to vote. Do they vote for the winner of the national popular vote? Or the winner of the popular vote in their state? Or how about for the candidate who won their district? Do they vote their conscience or their party? The dealmaking to get to 270 could be uglier than a Trump rally.

Only those three presidential candidates can be considered. No from-out-of-nowhere savior can swoop in and save the day. And if things aren’t resolved by Inauguration Day on Jan. 20, the vice president-elect, who will have been elected by a simple majority of the Senate, will serve as acting president until the matter is resolved.

“I find the level of discourse and discussion distressingly banal and an outrage and an insult to the voters,” Bloomberg told the FT, adding that if he were to actually run he would need to start getting his name on the ballot in March.