Fundraisers looking to help Biden secure resources for Tuesday, when 14 states hold primaries, got what they were looking for in the buildup to South Carolina and throughout Saturday. According to people with direct knowledge of the matter, Biden’s bundlers lured donors who had been backing Sen. Amy Klobuchar and former South Bend Mayor Pete Buttigieg. They also grabbed support from donors who had been uncommitted, these people added.

These wealthy donors are now willing to give up to the max amount of $2,800 to Biden’s campaign, which has struggled at times to raise cash.

“Money has been pouring in. And now it will really pour. Voters now understand that a vote for anyone other than Biden is a vote for Bernie Sanders,” Florida-based businessman John Morgan, a Biden bundler, told CNBC after his candidate’s big win. “I have been inundated with emails today.”