UPDATE1-Democrat Obama hurt by furor over ex pastor- polls

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By JoAnne Allen

WASHINGTON, April 30 (Reuters) - Democratic presidential candidate Barack Obama's loss in the Pennsylvania primary and the political firestorm over his former pastor have cut into his lead over rival Hillary Clinton among Democratic voters, according to polls released on Wednesday.

According to a New York Times/CBS News poll, 51 percent of Democratic voters now say they expect Obama to win their party's nomination. That's an 18 point-slide from a month ago when 69 percent said said they expected Obama to take on Republican John McCain in the November presidential election.

The latest survey found that 48 percent of Democrats believe Obama, an Illinois senator, has a better chance of beating McCain than Clinton, a New York senator, versus 56 percent a month ago.

The poll was conducted Friday through Tuesday, before Obama strongly denounced his former pastor, Rev. Jeremiah Wright, for making racially charged comments that roiled the Illinois senator's presidential campaign.

Obama's campaign was engulfed by the Wright controversy after a nearly 10-point loss to Clinton in the Pennsylvania primary early this month.

The Times/CBS poll also found that Democrats see no early end to the Obama-Clinton battle. About 70 percent of Democratic voters predict that their party's nominee will not be decided before the party's national nominating convention in August, the newspaper said.

A majority of Democrats also said the protracted primary race will eventually hurt the Democratic Party's chances against McCain, the Republican senator from Arizona, in the general election.