WASHINGTON (AP) - A senior White House adviser says none of the Republicans who want President Barack Obama's job has offered any substantive proposals to lower unemployment.

David Plouffe (pluhf) concedes in an NBC "Today"interview that Obama's poll standings have deteriorated amid high joblessness. But he also says congressional Republicans have failed to cooperate on a program to jump-start the economy. Plouffe argues "there wouldn't be a political issue" if the GOP would support Obama's $447 billion jobs program.

Referring to Tuesday night's Republican presidential debate, Plouffe says "none of the ideas we're going to see" will create jobs in the short term.

He says next year's election will present voters with a choice between Obama's policy of "creating security for the middle class" and the Republican stance for corporations and the wealthy.