Washington (CNN) Sens. Elizabeth Warren, Kirsten Gillibrand and Bernie Sanders enter 2019 with a significant initial cash advantage over other Democrats running or thinking about running for president in 2020, according to new reports filed with the Federal Election Commission.

Warren reported having over $11 million in the account for her US Senate campaign committee at the end of 2018, per her year-end Federal Election Commission report. Gillibrand reported over $10.3 million in cash on hand for her Senate campaign committee, the second highest total among those 2020 contenders filing reports. And Sanders, whose grassroots fundraising strength helped power his 2016 presidential campaign, reported having just over $9.09 million in the bank.

No other contender filing a year-end report had more than $5 million in cash on hand.

That's money that can be transferred to a presidential campaign. And the same goes for any other potential candidates who currently hold federal office and have funds available in their principal campaign committees, giving them a head start over some of their potential opponents. In a crowded primary field, in a presidential race expected to smash spending records, an initial cash edge can give candidates critical resources to get their message out early.

Sen. Kamala Harris flashed robust fundraising potential when she announced that she had raised more than $1.5 million in the 24 hours following her presidential campaign announcement. Separately, the California Democrat reported having just over $1.3 million in the account for her Senate campaign committee at the end of the year.

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