Sanders to top Clinton aide: 'There's always room at Bernie 2016'

Bernie SandersBernie SandersThe Memo: Trump faces steep climb to reelection California Democrats face crisis of credibility after lawsuits Fox's Brit Hume fires back at Trump's criticism of the channel MORE’s presidential campaign is exhuming the Twitter archives of a top Hillary ClintonHillary Diane Rodham ClintonThe Memo: Trump faces steep climb to reelection What the Mueller report tells us about Putin, Russia and Trump's election Steve Bullock puts Citizens United decision at center of presidential push MORE aide in a new attack against the Democratic front-runner. 

“If you ever want to work for a campaign that shares your values on health care, there’s always room at Bernie 2016,” Sanders (I-Vt.) tweeted, linking to a 2013 tweet from John Podesta

Podesta tweeted in November 2013: “Just applied online for Medicare. Took 5 minutes. Single payer anyone?”

Sanders has said he supports a single-payer, Medicare-for-all bill. 

The senator has introduced single-payer bills in previous sessions of Congress, and has argued that his proposal would be cost effective. 

In a fundraising pitch, he has criticized Clinton for taking millions of dollars from the pharmaceutical industry for her presidential run.

As of late December, Clinton had raised about $1.1 million from the pharmaceuticals or health products industries this cycle, according to data from Open Secrets.