Political campaigns

David Plouffe's advice for 2020

Cover: Viking

David Plouffe, manager of Barack Obama's 2008 campaign and a pioneer in grassroots organizing, will be out March 3 with "A Citizen's Guide to Beating Donald Trump, " via Viking, which includes his message to 2020 voters and campaigns.

"The only way change happens, especially on scale, is one human being talking to another. ... [I]t won't happen because of debates and conventions, it won't happen because of ads. It will happen because citizens take action."

The 5 leaders of the Democratic presidential pack

Photos: Getty Images

There's no such thing as a "front-runner" until Iowa Democrats caucus in January, but it's increasingly clear that 5 campaigns have a structural advantage entering the fall.

The big picture: Bernie Sanders, Pete Buttigieg, Joe Biden, Elizabeth Warren and Kamala Harris have built campaigns that can raise piles of cash — which they can use to build donor lists to raise even bigger piles of cash.