Trump dials donors for Romney

(CNN) – Donald Trump lent some star power to Mitt Romney on Wednesday by opening his Rolodex and placing fundraising calls with Romney.

"Very successful fund raising for @MittRomney yesterday," the business tycoon Tweeted.

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Trump raised "a substantial amount of money for the governor" during an hour of calls, according to his media liaison, Michael Cohen.

Trump considered a presidential bid himself, then endorsed Romney in early February, telling reporters he brought the former Massachusetts governor "a lot of good relationships with a lot of groups."

"If you look at the tea party. If you look at the Christian coalition. If you look at a lot of different groups, I have very, very strong relationships with them," he said.

Cohen told CNN that Trump is "prepared to assist [Romney] in any way the governor sees fit."

"Donald Trump doesn't only come with his larger-than-life persona, he comes [with] his personal relationships, which are substantial and far-reaching," he said.

– CNN Political Producer Rachel Streitfeld contributed to this report.

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