Harvard law professor: Impeachment could worsen political dysfunction, polarization
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Harvard Law School professor Laurence Tribe warned against impeaching President TrumpDonald John TrumpCummings says Ivanka Trump not preserving all official communications Property is a fundamental right that is now being threatened 25 states could see severe flooding in coming weeks, scientists say MORE on Sunday, implying the process could worsen political dysfunction and polarization. 

"It's important that we not exacerbate the dysfunction and the polarization in the society that helped Donald Trump rise to power in the first place," Tribe told CNN's Fareed Zakaria. 

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"If we were to use the impeachment power simply as a substitute for buyer's remorse, saying 'We thought this guy was terrible, but he's even worse,' if we were going to use it against ambient badness, rather than clear abuse of power — we would really use the impeachment power to undermine, rather than save, our democracy," he continued. 

Various congressional Democrats have floated the idea of impeaching Trump if he were to fire Deputy Attorney General Rod RosensteinRod Jay RosensteinThe Hill's 12:30 Report: Trump steps up attacks on McCain Rosenstein still working at DOJ despite plans to leave in mid-March Graham says he'll probe Rosenstein's 25th Amendment remarks MORE and special counsel Robert MuellerRobert Swan MuellerSasse: US should applaud choice of Mueller to lead Russia probe MORE, who is investigating alleged ties between the Trump campaign and Russian meddling in the 2016 presidential election. 

Rosenstein is overseeing the probe. 

Rep. Brendan Boyle (D-Pa.) said last month that he would introduce articles of impeachment against Trump if he fired Rosenstein, while Sen. Kamala HarrisKamala Devi HarrisStrategist says Trump is 'retreating' from talking about foreign policy Bannon says an O'Rourke-Harris ticket poses the greatest threat to Trump in 2020 Trump has lost support from male voters since shutdown, analysis shows MORE (D-Calif.) said firing the special counsel would be an impeachable offense. 

Still, others have cautioned against impeaching Trump ahead of the 2018 midterm elections.

"You can't jump the gun and determine that somebody should be impeached when you're going to be voting on the impeachment issue," Sen. Bernie SandersBernard (Bernie) SandersBannon says an O'Rourke-Harris ticket poses the greatest threat to Trump in 2020 Trump has lost support from male voters since shutdown, analysis shows Watchdog group calls on 2020 candidates to release 10 years of tax returns MORE (I-Vt.) told NBC's Chuck Todd on "Meet the Press" Sunday.

"So, I think you allow the Mueller investigation to do its course. You fight against anybody who wants to impede that investigation. But I think it is too early to talk about impeachment."