Continued from page 1

House Minority Whip Steny H. Hoyer, Maryland Democrat, accused Republicans of hypocrisy, saying the majority party had pledged to refrain from inserting “extraneous matter into must-past bills.”

White House spokesman Jay Carney was peppered with questions during his briefing Friday with reporters about the inclusion of the Keystone provision in the payroll tax cut extension bill and appeared to play down the president’s opposition to including it.

Mr. Carney reiterated the president’s opposition to “these types of extraneous issues being inserted in a tax cut bill,” but later pointedly noted that the president “hasn’t stated whether the Keystone permit should be granted or not.”

Mr. Carney said the president stands by his decision to delay approving Keystone until further review of its impact on the environment and said Republican Nebraska Gov. Dave Heinemen was one of the first elected officials to sound the alarm on the plan.

The payroll tax is 4.2 percent this year, but reverts to its usual 6.2 percent on Jan. 1 without congressional action.

Susan Crabtree contributed to this article.