Which parties control each state legislature and governorship

Data: National Conference of State Legislatures; Note: Nebraska’s legislature is non-partisan and D.C. does not have a governor; Chart: Harry Stevens/Axios

Heading into 2020, Republicans hold 27 governors' mansions while Democrats have 23. The GOP controls 30 state legislatures to Democrats' 19. Nebraska has a unicameral, non-partisan legislature.

Why it matters: Where the country heads on a number of key issues including abortion, gerrymandering, Medicaid, minimum wage, paid family leave, criminal justice and infrastructure is determined by action at the state level.

Judges rule Ohio's congressional map is unconstitutionally gerrymandered

Ohio's State Capitol. Photo: Joe Sohm/Visions of America/UIG via Getty Images

A panel of 3 federal judges deemed Ohio's congressional map unconstitutional in an unanimous decision on Friday, ordering a revised map be drawn before the 2020 elections, AP reports.

Details: The federal court ruling indicated that district boundaries were gerrymandered after the 2010 Census for Republican gain. While Ohio is currently barred from holding another election in which the current map would be used under the decision, it's likely to be appealed to the Supreme Court.

Go deeper ... Democrats' other 2020 battle: gerrymandering