WASHINGTON (Reuters) - The White House would not agree to repealing a medical device tax as part of a stop-gap Bill to continue funding the government past Sept 30, White House spokesman Jay Carney said on Thursday.

The tax helps to fund President Barack Obama's 2010 health-care law and Republicans are trying to undermine the law.

The White House also would reject the inclusion of a measure to approve TransCanada's Keystone XL oil pipeline on a Bill to raise the debt limit, Mr Carney told reporters at a briefing.