There were 419,362 signatures verified by the Secretary of State's Office.
Now, the legendary Silicon Valley investor is making headway on a longtime and perhaps unrealistic effort to split California into three separate states: Northern California, California (new), and Southern California.
Draper, a venture capitalist, said he conceived the initiative out of a belief that "the citizens of the whole state would be better served by three smaller state governments while preserving the historical boundaries of the various counties, cities and towns".
According to the ballot measure, Northern California will consist of counties in the northern part of the state, including Sacramento and San Francisco Counties.
Southern California: San Diego, San Bernardino, Orange, Riverside, Mono, Madera, Inyo, Tulare, Fresno, Kings, Kern and Imperial counties. In the unlikely event the measure is approved, the change would be the first division of an existing US state since the creation of West Virginia in 1863. The next statewide general election is set to take place on November 6. West Virginia was formed by seceding from a Confederate state over differences around slavery.
Constitutional lawyer and professor Jonathan Turley had told CNN that congressional approval is not impossible, but not likely to happen, as Democrats could feel they have too much to lose.
California gets 55 electors in the Electoral College - a powerful number that has been a huge unmovable bloc for the Democratic candidate.
A nascent opposition campaign already is sounding the more practical alarms about splitting California into three states. Each state, though different in size, would have roughly the same population, according to the proposal. His first proposal, in 2014 suggested the state breaking into six, not three, but this was rejected.
Stephen Lam / Reuters This is the third time Tim Draper, above, has tried to split up California.
His "Cal 3" campaign got more than 400,000 valid signatures, more than the amount required by state law, CNN reported. Joe Rodota, a political consultant and founder of intelligence services company Forward Observer, described the ballot to CBS as "a waste of time", and one that makes some issues unnecessarily complicated.