Voters in eight states cast ballots Tuesday in this year's biggest day of primary elections. In California, where the top two candidates advance regardless of party, Democrats feared their numerous candidates would split the vote and leave the party locked out of some of the 10 GOP-held congressional districts they are targeting in their effort to regain control of the House, but preliminary results showed Democrats holding second place in all of those races. Democrats failed to control the governor's race, however, as Lt. Gov. Gavin Newsom (D) will face off against Republican businessman John Cox. In New Jersey, the national Democratic Party's favored candidates easily won key primaries, including in Republican incumbent Rep. Leonard Lance's district, as well as in the race for retiring GOP Rep. Frank LoBiondo's seat. The Democrats need to flip 23 seats to win the House.