When news started to float around in January that Michael Bloomberg was considering a third-party run for president, Slate’s Jamelle Bouie was concerned.

Minutes ago, Bloomberg announced in a column for his eponymous media company that he will not enter the 2016 for more or less the same reason that Bouie outlined: Because it could inadvertently throw the election to Donald Trump (or Ted Cruz). From Bloomberg’s piece:

In a three-way race, it’s unlikely any candidate would win a majority of electoral votes, and then the power to choose the president would be taken out of the hands of the American people and thrown to Congress. The fact is, even if I were to receive the most popular votes and the most electoral votes, victory would be highly unlikely, because most members of Congress would vote for their party’s nominee. Party loyalists in Congress—not the American people or the Electoral College—would determine the next president.

As the race stands now, with Republicans in charge of both Houses, there is a good chance that my candidacy could lead to the election of Donald Trump or Senator Ted Cruz.

(Bloomberg is referring to the constitutional provision that requires the House of Representatives to select a president if no candidate wins a majority.)

While the former New York mayor writes that he is “not ready to endorse any candidate,” his move is obviously good news for Hillary Clinton, who loses the popular vote to Trump in some polls of a prospective Trump-Bloomberg-Clinton race but generally beats Trump when the hypothetical matchup is head-to-head.