WASHINGTON (AP) — The government unlocked its doors Thursday after 16 days, with President Barack Obama saluting the resolution of Congress' bitter standoff but lambasting Republicans for the partial shutdown that he said had damaged the U.S. economy and America's credibility around the world.

"There are no winners here," Obama said just hours after signing a last-minute measure from Congress that was free of the Republican demands that had started the standoff. The deal allowed federal workers to return Thursday morning and headed off the threat that the nation would default on its debts, at least for this year.

"The American people are completely fed up with Washington," Obama said in stern remarks at the White House. The nation's credit rating was jeopardized, economic growth and hiring were slowed and federal workers were temporarily deprived of paychecks, Obama said, all because of "yet another self-inflicted crisis."