Aide: Clinton 'perfectly willing' to do New York debate
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A spokesperson for Hillary ClintonHillary Diane Rodham ClintonIntel Dem decries White House 'gag order' after Bannon testimony 'Total free-for-all' as Bannon clashes with Intel members Mellman: On Political Authenticity (Part 2) MORE says she is "perfectly willing" to debate Democratic presidential rival Bernie SandersBernard (Bernie) SandersMellman: On Political Authenticity (Part 2) Former Sanders campaign manager: Don't expect email list to be shared with DNC Adult film star: Trump and Stormy Daniels invited me to 'hang out' MORE in New York.

Brian Fallon said during an interview on Bloomberg TV's "With All Due Respect" on Tuesday that Clinton is open to holding a debate before the state's April 19 primary.

"If they can find a mutually agreeable date in the next couple of weeks before New York, I think it could happen," Fallon added.

During a campaign stop in LaCrosse, Wis., on Tuesday, Clinton told reporters she was open to the idea of debating but didn't suggest a date, according to the New York Daily News.

Sanders seized on the apparent openness, saying later on CNN, "Let's do it."

The campaigns have been sparring for days over whether to hold a debate in the coming weeks, with the Sanders campaign issuing a letter over the weekend suggesting Clinton is afraid to debate.

Clinton's chief strategist, Joel Benenson, suggested Monday that a debate hinged on the "tone" the Vermont senator adopted, while Sanders's campaign has continued to attempt to pressure Clinton.

Clinton released a new campaign ad Wednesday aimed squarely at Republican rival Donald TrumpDonald John TrumpDems flip Wisconsin state Senate seat Sessions: 'We should be like Canada' in how we take in immigrants GOP rep: 'Sheet metal and garbage' everywhere in Haiti MORE in New York ahead of the state's primary.

--This report was updated at 11:32 a.m.