Wall Street Democratic donors are threatening to take their money across the aisle should the Democratic Party nominate Elizabeth Warren for president in 2020.

Some of the Democratic Party’s largest donors could sit out the election or back Trump in order to stave off Warren and her anti-wealth policies, according to CNBC. The Massachusetts senator released a proposal in January to tax the wealth of Americans worth over $50 million.

Warren has also pushed policies to increase regulations on wealthy businesses, such as corporate banks and private equity firms.

[Related: Sanders tries to top Warren with new wealth tax proposal]

"You're in a box because you're a Democrat and you’re thinking, 'I want to help the party, but she's going to hurt me, so I'm going to help President Trump,'" one senior private equity executive said.

"They will not support her. It would be like shutting down their industry," said the executive of a large bank.

Warren does not appear to be troubled by the threats of some of the Democratic Party's largest donors. On Sept. 10, she endorsed a CNBC clip of host Jim Cramer reporting that business executives are somewhat "fearful" of her winning the presidency.

Warren has gained support in recent weeks, eclipsing former Vice President Joe Biden as front-runner in national polling for the Democratic primary.