Vice President Kamala Harris entered the homestretch of the general election building a campaign that was bigger than former President Donald J. Trump’s in nearly every discernible category. She is raising more money than Mr. Trump, with her campaign collecting more than four times as much as his did in August.

Whatever control and self-restraint helped launch Trump’s third presidential campaign has largely disappeared.

Kamala Harris’ campaign spent nearly three times as much as Donald Trump’s did in August — but raised so much that she still grew her cash advantage. The massive spending disparity came even as the Trump campaign continued to scale up its expenses,