Democrats are more 'optimistic' about taking back the Senate after Biden surge

While they realize they still have a long way to go, some Democratic lawmakers are feeling more confident about their chances of flipping the Senate in 2020. And they're mostly thanking former Vice President Joe Biden, Politico reports.Biden has re-established himself as the frontrunner for the Democratic presidential nomination after he secured a coalition of sorts with the backing of some of his more mderate former contenders. Sen. Bernie Sanders (I-Vt.), although very much still alive in the