The House oversight committee was supposed to vote this morning on whether to hold EPA Administrator Stephen Johnson (and an OMB official) in contempt of Congress for refusal to comply with congressional subpoenas.

But the EPA and the White House have now invoked executive privilege, committee Chairman Henry Waxman (D-CA) just announced, so he's delaying the vote to assess the privilege claims.

Keep in mind that the EPA and White House have been stonewalling Waxman for months, but have waited until now to formally invoke executive privilege.

It's all part of the Bush Administration's overarching strategy for its last year in office: Delay. Delay. Delay.