Minneapolis Mayor R.T. Rybak gained another high-profile endorsement in his gubernatorial bid.

U.S. Rep. Betty McCollum of Saint Paul endorsed Rybak on Wednesday. She said his "tireless energy, executive experience and determined vision are exactly what Minnesota needs at this difficult time."

McCollum, a former supporter of Steve Kelley's failed bid, said Rybak's campaign is best positioned to win the November general election.

"For years you have impressed me with your work," she said in a statement. "You responded to the I-35W bridge tragedy with strength, compassion and extraordinary leadership in a time of crisis."

McCollum noted that it's been 24 years since Minnesotans elected a DFL governor.

"Our state needs a bold, progressive, and responsible leader – the kind of leadership you are offering the DFL," she said. "As governor, I know I'll be able to count on you to work effectively with Congress and the White House on behalf of our families and Minnesota's future."

Rybak praised McCollum's help to city leaders around the state. "I enjoyed campaigning with her for Barack Obama, and she has been an even bigger help to our state since President Obama took office," Rybak said in a statement. "I look forward to campaigning with her again this year, and can't wait to be her partner in delivering more results for Minnesota families."

Rybak faces a fierce battle for the DFL endorsement Saturday. Those who have said they'd abide by the endorsement are House Speaker Margaret Anderson Kelliher, state Rep. Paul Thissen, state Rep. Tom Rukavina and state Sen. John Marty.