Democratic front-runner Hillary Clinton raised $27 million in May, her campaign said Wednesday, marking a slight uptick from the previous month’s fundraising and leaving her in a strong position as she heads into the final month of primary elections.

At the end of the month, Clinton had $42 million in the bank. Her rival, Vermont Sen. Bernie Sanders, hasn’t yet disclosed his May fundraising, but his campaign had less than $6 million in cash on hand at the end of April.