Sanders press secretary: 'Milquetoast' candidate like Bloomberg won't defeat Trump

Sen. Bernie SandersBernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE's (I-Vt.) national press secretary hammered former New York City Mayor Michael BloombergMichael BloombergDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida Bloomberg pays fines for 32,000 felons in Florida so they can vote Top Democratic super PAC launches Florida ad blitz after Bloomberg donation MORE on Thursday, arguing the billionaire candidate would not be able to defeat President TrumpDonald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE in a general election.

In an interview, Briahna Joy Gray told Hill.TV hosts Saagar Enjeti and Krystal Ball that Bloomberg's campaign lacked the on-the-ground enthusiasm necessary to win in November.

"You cannot ignore the fact that Bernie Sanders has the fundraising engine that can keep us going all the way, and actually compete with someone like Donald Trump who has all the lobbyists' and special interests' money at his back," Gray said.

"You can't compete with the MAGA hat-wearing crew if you are a milquetoast candidate like Michael Bloomberg," she added.

Her comments come after Bloomberg was sharply criticized by every Democrat onstage during Wednesday's presidential debate in Las Vegas, just days ahead of the Nevada caucuses and the former mayor's first appearance on the debate stage since jumping into the race in late November.

During the debate, Bloomberg faced tough questions from fellow Democrats such as Sanders and Sen. Elizabeth WarrenElizabeth WarrenDimon: Wealth tax 'almost impossible to do' CNN's Don Lemon: 'Blow up the entire system' remark taken out of context Democrats shoot down talk of expanding Supreme Court MORE (D-Mass.) over his earlier support of stop and frisk, as well as workplace issues at his company, Bloomberg L.P.