More than 24,900 Broward residents voted for Florida governor but not for U.S. senator, a figure far larger than the margin now separating the two Senate candidates, according to county results updated Thursday evening. The Sun Sentinel found similar discrepancies in other statewide races, where the ballots counted suggest that thousands of voters made the unlikely choice to vote on lower-profile races and bypass the Senate race — a marquee contest and the first one on the ballot.