Today is the last day for California residents to cast their votes in a gubernatorial election that could potentially remove current Gov. Gavin Newsom from office.   Political Data Inc. estimated 37 percent of the 22 million recall election ballots were returned as of Sept. 14.   In the first section of the ballot, voters will be asked whether they want to vote to recall Newsom; in the second part, they may pick the candidate they prefer in case the recall passes.   If more than 50 percent of voters vote “no” on the recall question, Newsom will stay in office; if more than 50 percent of voters vote “yes,” then the recall passes and the candidate with the highest number of votes will be chosen. A voter who voted “no” on the recall question may also vote for a replacement candidate, according to the Secretary of State’s website.  If the recall passes, the election …