NBC News reports:
Among all registered voters, Joe Biden leads President Donald Trump in a head-to-head contest, according to a new NBC News/Wall Street Journal poll. In a hypothetical one-on-one general election contest, 52 percent of all voters say they would choose Biden, while 43 percent say they would choose Trump. For Senator Bernie Sanders, it’s 49 percent saying they would support the Vermont senator, while 45 percent back Trump.
Biden 52% (+9)
— Political Polls (@Politics_Polls) March 15, 2020