May 30 (Reuters) - Casino billionaire and Republican

mega donor Miriam Adelson will be the lead financier of a

spending group backing U.S. presidential candidate Donald Trump,

in what could be a major financial boost in his rematch against

Democratic President Joe Biden.

The Preserve America super PAC, which Adelson and her late

husband Sheldon Adelson donated to in the 2020 election cycle,

has been revived, and Adelson will be a "lead donor" this time

around too, said Dave Carney, a Republican strategist who will

run the group.

"Our goal is to raise more than we did last time, which was

about $100 million," he told Reuters on Thursday. He declined to

specify how much Adelson would donate to the effort.

News of Adelson's involvement was first reported by

Politico. A spokesperson for Adelson did not immediately respond

to a request from Reuters for information on her donation plans.

Adelson, an Israeli-born physician whose family Forbes

estimates has a net worth of around $29.5 billion, is one of the

biggest donor prizes for a Republican candidate. She chose to

sit out the Republican primary but now appears committed to

helping Trump regain the White House in the November election.

After starting out with a significant fundraising

disadvantage against Biden, Trump for the first time in April

outraised his Democratic rival, aided by a flurry of major

fundraising events across the country.

Adelson and her late husband gave the most - over $218

million - to Republican and conservative causes in the 2020 U.S.

election cycle, according to the Center for Responsive Politics,

which tracks political spending.

The Adelsons are known for their philanthropy and business

ventures in Israel and donations to Jewish causes. Sheldon

Adelson, who died in 2021, headed the casino company Las Vegas

Sands Corp. ( LVS )