Greece is getting crushed today. Stocks were down by as much as 11.2% on Tuesday — the worst plunge since 1987. Reuters reporter Jamie McGeever tweeted a chart showing the magnitude of this plunge relative to other drops. It's not good, that's for sure. Check it out: So what's going on in Greece? This crash follows the news that Greece's presidential elections are being brought forward to December 17. If the government does not get the supermajority needed to install a president, there's a chance there will be a general election. Right now, the radical Coalition of the Left is leading in the polls. And investors appear to be getting really nervous about that.SEE ALSO: Markets Everywhere Are Tanking Join the conversation about this story »