The ascendance of several young senators — and one big potential retirement — is reshaping power within the caucus.

Typically, the Bronx and Queens rep tends to notch a rough average between $1-2 million on the fundraising circuit each quarter, her filings show.

The fierce post-election debate raging inside Democratic circles over whether the party's leadership needs a generational change is set to turbocharge if Sen. Dick Durbin retires.