WASHINGTON (AP) — The Senate's top Republican says his Democratic counterpart is barring any GOP changes to pending defense legislation because he "can't stomach" a vote on Iran sanctions.

Minority Leader Mitch McConnell said Wednesday that Majority Leader Harry Reid is jamming a comprehensive, $632.8 billion bill through the Senate in the closing days of the session without allowing any amendments. The Kentucky Republican called it a short-term power grab that could come back to haunt the Democrats if they find themselves in the minority.

The Kentucky Republican said Reid is acting at the behest of the Obama administration, which fears a new round of sanctions will scuttle the recent nuclear deal with Tehran.

Republicans and Democrats on Congress' military panels finalized the policy bill to ensure its passage this year.

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  • Harry Reid (D-Nev.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 110th-112th Congress (2007-present)

  • Bill Frist (R-Tenn.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 108th & 109th Congress (2003-07)

  • Tom Daschle (D-S.D.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 107th Congress (2001-03)

  • Trent Lott (R-Miss.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 105th & 106th Congress (1997-2001)

  • Bob Dole (R-Kan.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 99th & 104th Congress (1985-87, 1995-96). Dole resigned from the Senate in June 1996 to focus on his presidential campaign.

  • George Mitchell (D-Maine)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 101st-103rd Congress (1989-95)

  • Robert Byrd (D-W.V.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 95th, 96th & 99th Congress (1977-81, 1985-87)

  • Howard Baker (R-Tenn.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 97th & 98th Congress (1981-85)

  • Mike Mansfield (D-Mont.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 87th-94th Congress (1961-77)

  • Lyndon Johnson (D-Texas)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 84th-86th Congress (1955-61). Johnson resigned from the Senate in Jan. 1961 to take on his new role as vice president.

  • William Knowland (R-Calif.)

    (Pictured right) <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 83rd Congress (1953-55)

  • Robert Taft (R-Ohio)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 83rd Congress (1953). Taft died on July 31, 1953 and William Knowland was elected to take over on August 4.

  • Ernest McFarland (D-Ariz.)

    (Pictured standing, far right) <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 82nd Congress (1951-53)

  • Scott Lucas (D-Ill.)

    (Pictured front row, left) <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 81st Congress (1949-51)

  • Wallace White Jr. (R-Maine)

    (Pictured far left) <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 80th Congress (1947-49)

  • Alben Barkley (D-Ky.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 75th-79th Congress (1937-47).

  • Joseph Robinson (D-Ark.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 73rd-75th Congress (1933-37). Robinson died on July 14, 1937, and Alben Barkley was elected a week later to take over.

  • James Watson (R-Ind.)

    (Pictured second from right) <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 71st & 72nd Congress (1929-33)

  • Charles Curtis (R-Kan.)

    <a href="http://www.senate.gov/artandhistory/history/common/briefing/Majority_Minority_Leaders.htm#2">Senate Majority Leader</a>, 68th-70th Congress (1923-29). Curtis resigned from the Senate in March 1929 after being elected vice president.