House Republicans delayed a vote planned for tomorrow on rolling back the health-care overhaul while Giffords, a 40-year- old Democrat, is being treated in a Tucson hospital. When they turn back to the health law Republicans will focus on moderating their tone, strategists said, in contrast with some lawmakers’ stronger language from last year’s campaign.

“There’s going to be a natural cautiousness,” said pollster David Winston, who advises House Republican leaders. “Members are thinking through how they can have an effective debate without it being disagreeable.”