Under Amendment 4, which Florida voters passed overwhelmingly in 2018, felons who have completed their sentences would have voting rights restored. Republican lawmakers then moved to define what it means to complete a sentence.
In addition to prison time served, lawmakers directed that all legal financial obligations, including unpaid fines and restitution, would also have to be settled before a felon could be eligible to vote.
The Florida Rights Restitution Coalition had raised about US$5m ($7.5m) before Bloomberg made calls to raise almost US$17m ($25.6m) more, according to Bloomberg staffers.
The money is targeted for felons who registered to vote while the law was in question and who owe US$1500 ($2260) or less. That accounts for about 31,100 people, the staffers said. In a state that decided the 2000 presidential election by 537 votes, that could be critical in a year when polls show Trump and former vice-president Joe Biden in a dead heat.
Organisers for the group say they aren't targeting people registered with a particular political party.
"To hell with politics, to hell with any other implications or inuations, at the end of the day it's about real people, real lives, American citizens who want to be a part of this," said Desmond Meade, the group's executive director. "People with felony convictions have had their voices silenced for so long."
The group said other donors include John Legend, LeBron James, Michael Jordan, MTV, Comedy Central, VH1, Ben & Jerry's, Levi Strauss & Co., the Miami Dolphins, the Orlando Magic, the Miami Heat and Stephen Spielberg.
- AP