Updated at 11:20 a.m. ET

Protesting the soon-to-expire Patriot Act, presidential candidate Sen. Rand Paul held the floor of the Senate for nearly 11 hours late Wednesday in a filibuster-like speech railing against the law and the government's continued surveillance of Americans' phone records.

"I don't think we're any safer looking at every American's records," Paul said.

As NPR's Ailsa Chang reports, the Senate is expected to vote this week on a House-passed bill that would prevent the government from collecting and storing phone records, but it would let the government get that data from phone companies with a court order. Paul opposes that bill or any plan that would continue surveillance of phone records.

Paul said the Patriot Act "isn't about the vast majority of good people who work in government. It's about preventing the bad apple — it's about preventing the one bad person that might get into government and decide to abuse the rights of individuals."

Congress has until June 1 to renew the law without it lapsing; Paul's "filibuster" is unlikely to do more than possibly delay its passage in the Senate.

"There comes a time in the history of nations when fear and complacency allow power to accumulate and liberty and privacy to suffer," the Kentucky senator said at 1:18 p.m. EDT when he took to the Senate floor. "That time is now, and I will not let the Patriot Act, the most unpatriotic of acts, go unchallenged."

The Associated Press says he finished at 11:49 p.m., having held the podium for nearly 11 hours.

In case you're wondering why Paul's marathon speech wasn't a true filibuster, NPR's Ron Elving explains:

"Rand Paul was holding the floor for an extended period. But it wasn't a filibuster because it was not blocking consideration of the Patriot Act renewal (House or Senate version), nor was it really delaying it in any meaningful way. He did yield for questions — which that were really speeches by other members, including Democrats like Ron Wyden of Oregon and Martin Heinrich of New Mexico — that gave him a breather now and then. It took the form of a brief filibuster, but it was really just a long speech intended to attract attention.

"A real filibuster has to have at least a chance of blocking or delaying consideration of a bill. No one does this physically anymore. It's done as a threat to filibuster, which translates into a delay (of varying length) or the scheduling of a cloture vote. In this latter, 'virtual filibuster' form, the tactic has become quite common — even normative — on anything important."

The AP says Paul's fellow Kentuckian, Senate Majority Leader Mitch McConnell, has said the Senate will move on the Patriot Act before the Memorial Day recess.

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