Senate

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Medical marijuana bill author Sen. Scott Dibble listened as Sen. Bill Ingebrigtsen argued against it on the Senate floor in St. Paul, MInn., Tuesday, May 6, 2014. The state Senate passed a medical-marijuana bill on Tuesday more ambitious than any Gov. Mark Dayton and law-enforcement officials have said they would support. (AP Photo/The Star Tribune, Glenn Stubbe) MANDATORY CREDIT; ST. PAUL PIONEER PRESS OUT; MAGS OUT; TWIN CITIES TV OUT GLEN STUBBE * gstubbe@startribune.com

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Capitol Police officers and Senate Doorkeepers escort out people who filled the Missouri Senate Gallery in Jefferson City, Mo,, Tuesday, May 6, 2014. They were with the Faith Community Rally in Jefferson City protesting the senate's rejection of the expanded medicaid coverage under the federal healthcare reform legislation. These were the last four who refused to leave after the deliberative body was shut down for about an hours. (AP Photo/The Jefferson City News-Tribune, Julie Smith)

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Sen. Mary L. Landrieu of Louisiana, one of the Senate's most endangered Democrats, was the lead sponsor of the energy bill that included the pipeline. (Associated Press)

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Minority Leader Mitch McConnell, Kentucky Republican, who would be in line to lead the Senate if his party wins control of the chamber in the November elections, is opposed to restoring the procedure of earmarking, a spokesman said. (Associated Press)

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In this March 26, 2014, photo, state Senate Chief Sergeant-at-Arms Tony Beard, center, walks past reporters at the Capitol in Sacramento, Calif. Beard announced his retirement Tuesday, May 6, 2014, following revelations that he withheld information about one of his employees using drugs from Senate President Pro Tem Darrell Steinberg, D-Sacramento.(AP Photo/Rich Pedroncelli)

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In this March 26, 2014, photo, state Senate Chief Sergeant-at-Arms Tony Beard, center, walks past reporters at the Capitol in Sacramento, Calif. Beard announced his retirement Tuesday, May 6, 2014, following revelations that he withheld information about one of his employees using drugs from Senate President Pro Tem Darrell Steinberg, D-Sacramento.(AP Photo/Rich Pedroncelli)

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Republican senatorial candidate Thom Tillis, front-runner in North Carolina's primary, may face a runoff election in July that could impede his Senate bid. (Associated Press)

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Panel of journalist from left, John Adams of the Great Falls Tribune, Tim McGonigal of KRTV and moderator Rich Ecke, of the Great Falls Tribune, hold a Democratic campaign forum for U.S. Senate with U.S. Sen. John Walsh, former Lt. Governor John Bohlinger and senate candidate Dirk Adams Saturday, May 3, 2014, in the Cameron Auditorium at Benefits Health System, Great Falls, Mont. (AP Photo/The Great Falls Tribune, Larry Beckner)