Biden met with Franken in Washington and said afterward that the election and subsequent long-running recount battle were fair and transparent, and that every ruling had been unanimous.
"While Sen. Amy Klobuchar is one of the hardest-working members of the U.S. Senate, Minnesotans deserve their full representation," Biden said in a written statement.
Franken, a Democrat like Biden, is expected to be finally declared the winner of the race by a margin of just over 300 votes over Republican Norm Coleman, who held the seat the past six years. Coleman is appealing a lower-court ruling in Franken's favor to the Minnesota Supreme Court. If he loses there, he could still pursue an appeal in federal court.
If seated, Franken, a comedic writer, would give the Democrats the 60 members needed to thwart any attempt by the Republicans to kill legislation through a filibuster.