Bloomberg’s vast tech operation will also be redirected to help the eventual nominee, as Democrats struggle to compete with the vaunted digital operation built by Trump campaign manager Brad Parscale. Hawkfish, a digital company started by Bloomberg that’s carrying out his $100 million online ad campaign, will be retained through Election Day to help defeat Trump, the officials said.

Awaiting the eventual nominee would be a shadow field operation across the country that’s currently unparalleled in size by any of the other candidates in the presidential race. The roughly 500 staff members Bloomberg has committed to paying through November include those in battleground states like Florida, North Carolina, Michigan, Pennsylvania and Wisconsin, as well as in Arizona.

“Mike Bloomberg is either going to be the nominee or the most important person supporting the Democratic nominee for president,” said Kevin Sheekey, Bloomberg’s campaign manager. “He is dedicated to getting Trump out of the White House.”