Today's Politico Playbook Audio Briefing is presented by Blue Cross Blue Shield Association.

Good Tuesday morning. I'm Jake Sherman and welcome to your political playbook audio briefing.

And I'm Anna Palmer. So why is D.C. so nervous about Bernie Sanders.

Historically, many presidential candidates have given us clues about how they'd govern.

Joe Biden has cut numerous deals with Mitch McConnell. Mitt Romney was a governor and a businessman.

Barack Obama spent time in the Senate, but had a clearly articulated worldview that wasn't

hard to transpose into a governing philosophy. Bernie Sanders, much like Donald Trump, has an agenda that would be

nearly impossible to pass, even if his party had large majorities in both houses of Congress.

Lots of attention has been paid to the nervousness among moderate Democrats about the prospect

of a Sanders nomination, but the fear among corporate America, nonprofits, and other DC entities

is quite real. No one has an

idea how Sanders would govern if given the opportunity or whether his agenda would stand a chance at

an all-democratic Washington. There's fear Sanders would follow Trump's lead and use executive orders

to short-circuit Congress when he couldn't build consensus, a notoriously difficult thing to

plan for. Ironically, a lot of companies we've spoken to feel as if they've

spent months mapping out in Elizabeth Warren presidency, and now they're being forced to confront

what Sanders would do in office. Keep your eyes peeled in the next 30 days, Super PAC seeking to

keep the Senate Republican and flip the House will take in big money. Happening tonight, the CBS

debate in Charleston, South Carolina.

Our colleague, Sally Goldenberg, is up with a story on Mike Bloomberg's debate strategy to nuke Bernie Sanders.

Along those same lines, Chris Catalago and Laura Barone Lopez report that Bloomberg's

internal poll claims that Bernie would sink down-ballot Dems.

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