With Hillary Clinton poised to become the presumptive Democratic nominee next Tuesday, her campaign is preparing to begin actively soliciting general election funds for the first time on Wednesday, according to a person familiar with her campaign’s planning.

The move will amount to a potentially massive and immediate infusion of cash into Clinton's campaign, which announced this week that it had more than $42 million cash-on-hand as of the end of May.

Clinton has nearly 30,000 donors who have contributed the legal maximum of $2,700 for the primary through the end of April, according to Federal Election Commission records. If all of those contributors cut same maximum-sized checks for the general election she could raise another $80 million from them.

The decision to begin collecting general election funds, which Clinton has actively avoided for more than year, is yet another sign that even as Bernie Sanders remains in the Democratic race, Clinton is turning her attention fully to taking on Donald Trump, the presumptive Republican nominee. She delivered a blistering speech in San Diego on Thursday warning that his election would be a “historic mistake.”