Story highlights Hillary Clinton, facing a prolonged primary, continues to be diverted from the trail to attend big-dollar fundraisers

She raised more than $30 million at fundraisers she headlined over the first three months of the year

Clinton will appear twice with actor George Clooney

New York (CNN) Hillary Clinton and family are spending much of April on the fundraising circuit.

The Democratic front-runner will travel to Florida on Tuesday to raise money, headlining three fundraisers in the Sunshine State in the middle of her fight to win the New York primary on April 19. Former President Bill Clinton and daughter Chelsea Clinton have five more events scheduled this month as well.

The events highlight an issue for Clinton: In order to raise the money needed to keep her campaign on track, Clinton has to invest considerable time by making personal appearances at events across the country.

From January to March, Clinton-headlined events -- 48 fundraisers in 19 different states -- brought in more than $30 million, according to CNN estimates. Overall, Clinton's campaign says it raised $75 million during the first three months of 2016.

All of these events raised primary dollars, money that Clinton will need to compete in the longer-than-expected race against Vermont Sen. Bernie Sanders, a candidate who raises most of his money online and he used Clinton's fundraising as something with which to attack the former secretary of state. These funds will also, though, be available for Clinton's possible general election campaign.

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