California voters approved Democratic Proposition 50 in a vote Tuesday, a response to Republican-led Texas efforts to redraw the state's electoral districts.
The aim was to secure at least five congressional seats for President Trump's party in next year's midterm elections - and California countered with similar measures to the benefit of the Democrats.
The California state legislature has already given the bill the green light and Governor Gavin Newsom has signed it, but residents' approval was also needed to get the new map into place.
