Democrats swept both governors’ races Tuesday, with Sen. Jon Corzine easily winning New Jersey and Lt. Gov. Tim Kaine taking Virginia despite a last-minute campaign push for his opponent from President Bush.

Elsewhere, Texas voters overwhelmingly approved a constitutional ban on gay marriage, GOP Mayor Michael Bloomberg easily clinched a second term in heavily Democratic New York, and Detroit Mayor Kwame Kilpatrick was trailing in his re-election bid.

In California, ballot measures that would cap spending and take redistricting away from lawmakers were trailing while two others targeting public service unions were ahead. All four were strongly backed by GOP Gov. Arnold Schwarzenegger in his power struggle with the Democratic-controlled Legislature.

Kaine had 1,006,887 votes, or 51.6 percent, to Kilgore’s 902,264 votes, or 46.2 percent, with 99 percent of precincts reporting.

In New Jersey, Democratic Sen. Jon Corzine trounced Doug Forrester, with 1,124,945 votes, or 53.4 percent, to 912,130 votes, or 43.3 percent, for the Republican, with 95 percent of precincts reporting.

In a jubilant speech, Corzine pledged that his administration would put New Jersey’s citizens first. “As your governor, together we can change the way the public business is done in New Jersey.”

In Virginia, Kaine said his victory proved that voters prefer centrist government. “Tonight, the people of Virginia have sent a message loud and clear that they like the path we are on.”

Bush appeared at a Monday night rally with Kilgore – the first public campaign appearance with the president in a state that twice voted for Bush.

“There’s no way to spin this than anything other than a major defeat for Republicans and for President Bush,” said University of Virginia political scientist Larry Sabato. “This is a red state, he came in on Election Eve and he had no discernible effect. … If anything, he may have cost Kilgore some votes.”