SMART POWER: Obama Threatens to Boot Pakistan Ambassador

Pakistani officials said President Obama's national security advisor summoned Pakistan's ambassador to the White House Monday evening to deliver a threat from the president: Release Raymond Davis, an American being held in Lahore for killing two Pakistanis, or face the consequences.

National Security Advisor Tom Donilon told Ambassador Husain Haqqani, according to two Pakistani officials involved in negotiations about Davis, that the U.S. will kick Haqqani out of the U.S., close U.S. consulates in Pakistan, and cancel an upcoming visit by Pakistan's president to Washington, if Davis, a U.S. embassy employee, is not released from custody by Friday.

The outlines of the threat were confirmed to ABC News by a senior U.S. official, who was not authorized to speak on the record. A White House spokesperson, Tommy Vietor, declined comment.

Ambassador Haqqani denied, via Twitter, that any "US official, incl the NSA, has conveyed any personal threats 2 me or spoken of extreme measures."