Posted on Wed, Apr. 30, 2008

Chelsea Clinton stumped for her mother Wednesday in Puerto Rico, trying to woo students away from Sen. Barack Obama.

Taking about a dozen questions at Sacred Heart University, Clinton ticked through talking points including health care, immigration, and the political tenacity of New York Sen. Hillary Rodham Clinton.

''What she says she'll fight for, she'll fight for,'' she told students who later clustered around her for snapshots and autographs.

The island's June 1 vote is one of the last of the primary season. Clinton and Obama are also battling for superdelegates, and Clinton picked up one more of them on Wednesday.

Luisette Cabanas, vice chairwoman of the local Democratic Committee, said she had been undecided until several phone conversations with Clinton. She also said Clinton's win in Pennsylvania had impressed her.

Cabanas is the fourth of Puerto Rico's seven superdelegates to back Clinton. Two support Obama and one is remaining neutral until the national party convention in August.

New York is home to about a million Puerto Ricans, and analysts say that could help her chances on the island, which will send 63 voting delegates to the convention.