But the Senate is known to be split on how to proceed with a longer extension. Sen. Dianne FeinsteinDianne Emiel FeinsteinBottom line Filibuster reform gains steam with Democrats Senate panel votes 21-1 to back Justice IG measure over Graham objections MORE (D-Calif.) earlier this year proposed a straight extension, which the Obama administration supports. And Judiciary Committee ranking member Chuck GrassleyCharles (Chuck) Ernest GrassleyCongress gears up for battle over expiring unemployment benefits US, Mexico set for new post-NAFTA trade era Senators press IRS chief on stimulus check pitfalls MORE (R-Iowa) prefers a permanent extension.

While Senate Democrats seem eager to move a longer Patriot Act extension, the House might take a slower road. House Democrats hotly opposed any extension until thorough hearings are held, and Republicans promised to hold hearings during the three-month extension.

The surveillance authorities expire Feb. 28, and the extension approved by the House and Senate would extend that until May 27.

As of Friday morning, President Obama had not signed the extension, but is expected to, possibly over the weekend.