Boehner: GOP may link Keystone to tax cut

House Speaker John Boehner said on Sunday "all options" are on the table to push through the construction of the Keystone XL oil pipeline -- and suggested that the GOP may withhold its support for an extension of the payroll tax cut to force President Barack Obama to approve the project.

"We're going to do everything we can to make sure that this Keystone pipeline is in fact approved," the Republican congressman from Ohio said on "Fox News Sunday."

Boehner was vague, though, when pressed repeatedly on how Republicans would pursue the project, but he said the GOP "may" tie it to the payroll tax holiday, which expires Feb. 29. The Obama administration officially denied the Keystone project last week, saying it needed more time for review before the permitting process could move forward.