Author: Gregory Krieg and Kate Sullivan, CNN

Four takeaways from Tom Steyer's CNN town hall

Businessman Tom Steyer began his Sunday CNN night town hall in Iowa by challenging fellow billionaire Michael Bloomberg, who appears poised to join the Democratic presidential primary, to support a wealth tax.

Republican Dan Bishop wins North Carolina special election

North Carolina state Sen. Dan Bishop defeated Democrat Dan McCready in the North Carolina 9th District's special congressional election, giving Republicans a narrow victory in the GOP-leaning district where President Donald Trump won by 12 points in 2016.