Warren lovefest ending as 2020 competitors fear her rise

Democrats are already opening up new lines of attack: calling her celebrated policy proposals a “fraud,” challenging her to say how she’d pay for a massive health care plan, highlighting a lack of diversity in her supporters and dropping reminders of Warren’s long span as a Republican.

Aides to three rival candidates confirmed in interviews they’re revving up opposition research on Warren in preparation for the next debate on Sept. 12. Still others privately complained she’s gotten fawning treatment in the media as she unveiled a litany of ambitious plans without being pressed on where the money would come from to pay for them.

Warren’s supporters said the gripes amount to sour grapes from campaigns who didn’t take her seriously until she shot up in the polls, and are now watching with envy the organization she’s amassed while they were busy attacking each other.