* Bernie Sanders heads into Tuesday night’s debate as the current frontrunner in hte Democratic primary, his rivals are stepping up their attacks against the Vermont senator. “We’ve trained our eyes on him,” one Michael Bloomberg campaign aide told POLITICO.
* On Monday, his opponents released a barrage of criticism in the form of tweets, attack ads, and statements after 60 Minutes showed old footage of Sanders appearing to praise Fidel Castro.
* But Sanders wasn’t the only target: a pro-Sanders group released an old video of Bloomberg presenting an award to Harvey Weinstein.
* The attacks signify that the 2020 Democratic primary has entered a newer, nastier phase after over a year of candidates playing it (relatively) civil.