Obama says Gadhafi's time is up as Libya's leader

President Barack Obama dropped the careful condemnation, threats of consequences and the reminders to Moammar Gadhafi's regime about its responsibility to avoid violence. In their place he delivered a more forceful message to the Libyan leader: Leave.

The president called on Gadhafi to step down for the first time Saturday, saying that the Libyan government must be held accountable for its brutal crackdown on dissenters. The administration also announced new sanctions against Libya, but that was overshadowed by the sharp demand for Gadhafi's immediate ouster.

"The president stated that when a leader's only means of staying in power is to use mass violence against his own people, he has lost the legitimacy to rule and needs to do what is right for his country by leaving now," the White House said.

The statement summarizing Obama's telephone call with German Chancellor Angela Merkel came as Libya's embattled regime passed out guns to civilian supporters and sent armed patrols around its capital to quash dissent and stave off the rebellion that now controls large parts of the North African nation. Violence continued, a day after pro-Gadhafi militiamen and snipers fired on protesters trying to march in Tripoli and their leader told supporters to defend the nation.

Until Saturday, U.S. officials held back from fully and openly throwing all their support behind the protest movement, insisting that it was for the Libyan people to determine how they want to be led. The refrain echoed the public position maintained by the administration during the Egypt crisis, when the U.S. gradually dropped its support for longtime ally Hosni Mubarak but never explicitly demanded his resignation after nearly three decades in power.