WASHINGTON — Since replacing President Joe Biden as the Democratic presidential nominee, Vice President Kamala Harris has quickly consolidated power and energized a campaign that many Democrat leaders had worried about. Meeting no meaningful challenge from other Democrats, Harris secured votes to be the nominee from 4,567 delegates — 99% of the participating delegates — in a virtual call earlier this month. The campaign, together with the Democratic National Committee and other joint fundraising committees, raised a historic $310 million in July, dwarfing the tally for the Republican nominee, former President Donald Trump, in the same month. More than $200 millionmore