LOS ANGELES (KABC) -- An exclusive Eyewitness News poll conducted by SurveyUSA shows that in California, 54 percent of registered Republican voters are resigned to vote for Donald Trump and 57 percent of registered Democratic voters are resigned to vote for Hillary Clinton.The poll, released on Monday, showed that 51 percent of registered voters and 88 percent of strong Democrats have an extremely negative view of Trump, while 14 percent of registered voters and 45 percent of strong Republicans have an extremely positive view of TrumpTrump polls at 54 percent, Ted Cruz at 20 percent and John Kasich at 16 percent.In the Democratic presidential race in California, Hillary Clinton leads Bernie Sanders 57 percent to 38 percent.Twenty-eight percent of registered voters and 69 percent of strong Republicans have an extremely negative view of Clinton, while 16 percent of registered voters and 51 percent of strong Democrats have an extremely positive view of Clinton.In the race for Barbara Boxer's U.S. Senate seat, Attorney General Kamala Harris and Orange County congresswoman Loretta Sanchez are likely to advance to the general election in November, the poll showed. Both candidates are Democrats, which gives Republicans little chance to pick up Boxer's seat.The poll also showed that in a hypothetical November head-to-head presidential match-up:Hillary Clinton defeats Donald Trump by 56 percent to 34 percent.Hillary Clinton defeats Ted Cruz by 57 percent to 29 percent.Hillary Clinton defeats John Kasich by 53 percent to 34 percent.For this poll, SurveyUSA interviewed 2,400 California adults from April 27 to April 30. Of the adults, 2,011 were registered to vote in the state of California. Of the California registered voters, 529 were determined by SurveyUSA to be likely to vote in the June Republican presidential primary, 826 were determined by SurveyUSA to be likely to vote in the June Democratic presidential primary, 1,502 were determined to be likely to vote in the June U.S. Senate primary, and 1,683 were determined to be likely to vote in the November general election.