The floodgates have opened after President Joe Biden’s selfless and historic decision to end his re-election campaign and endorse Vice President Kamala Harris for President on Sunday. Democrats across the country are opening their wallets and sending a mountain of money to Democratic groups, especially the Harris for President campaign. In total, nearly $250 million to Democrats in the first 24 hours, including a historic $81 million directly to Harris for President, the campaign has announced. ActBlue, which acts as the fundraising platform for Harris for President, and many other Democrats, …