Today is the deadline for complete presidential candidates to report fundraising for the first quarter of the year. Some contestants announced for the Democratic nomination of their total already, including, at the head of the package, Sen. Bernie Sanders from Vermont, with over $ 18 million of contributions. Old Kamala Harris, from California, raised $ 12 million. Sen. Elizabeth Warren de Massachusetts? $ 6 million. How important is that money, as early as the race?