WASHINGTON (AP) — There are signs that Republican unity may be weakening, as the deadline for averting a government shutdown draws near.

For the first time since the showdown began more than a week ago, some Republican lawmakers are voicing dissent over the strategy that has been carried out at the insistence of members aligned with the tea party.

Republican congressman Charles Dent of Pennsylvania says he's willing to vote for stand-alone legislation that would keep the government running and that contains no provisions related to health care. He says he thinks there are enough votes in the House to pass it.

A second Republican, Colorado's Doug Lamborn, says he hasn't given up on trying to repeal President Barack Obama's health care law -- but, in his words, "for this week we may have to give up." He says Senate Majority Leader Harry Reid "won't budge."

A spokesman for House Speaker John Boehner (BAY'-nur) says the leadership will discuss options with the rank-and-file at a closed door meeting later today.

The Senate today, on a party-line vote, rejected the demand of House Republicans to attach to a temporary spending bill a provision that would delay the health care overhaul.

Obama is urging lawmakers to "act responsibly and do what's right for the American people."

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