From GOP.gov:

Democrats Who Once Opposed the “Arrogance” of Majority Rule
Are now ready to invoke majority rule to pass a government takeover of health care

President Barack Obama: “And what I worry about would be you essentially still have two chambers – the House and the Senate – but you have simply majoritarian, absolute power on either side. And that’s just not what the Founders intended.” (April 25, 2005)

Vice President Joe Biden: “This nuclear option is ultimately an example of the arrogance of power. It is a fundamental power grab….I pray God when the Democrats take back control we don’t make the kind of naked power grab you are doing.” (May 23, 2005)

Senate Majority Leader Harry Reid: “The right to extended debate is never more important than when one party controls Congress and the White House. In these cases a filibuster serves as a check on power and preserves our limited government.” (May 18, 2005)

Senator Dianne Feinstein: “The Senate becomes ipso facto the House of Representatives, where the majority rules supreme and the party in power can dominate, and control the agenda with absolute power.” (May 15, 2005)

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