Sanders Leading?

"A new CNN poll shows Sen. Bernie Sanders (I-VT), who is running for the Democratic

nomination, outperforming all GOP contenders including party-favorite Donald Trump. The self-titled Democratic Socialist is the only candidate currently with a net positive favorability rating.
Here’s how Sanders fares against the top Republicans nationally:
SANDERS: 48%
BUSH: 47%
SANDERS: 48%
WALKER: 42%
SANDERS: 59%
TRUMP: 38%" RN