The rules of the United States Senate not be amended to permit cloture filibuster by vote of a majority of members, Joseph Cooper '55, professor of Government, told the committee on Standing Rules of the yesterday morning.

Any change in the procedure for in the Senate must take into not only particular policy of the moment but also the fact the rules must fit all future , Cooper said in Washington.

While the filibuster has been regarded as a tool to assist Southern attempts to block civil rights , Cooper testified "tomorrow be the liberals who want to it. The consequences of changing majority cloture are not at all clear." rules, requiring two-thirds of voting to shut off debate, have action. Cooper insisted. But he that cloture by three-fifths of those and voting, as urged in S. Res. 6 Senators Clinton P. Anderson (D-N. and Thruston B. Morton (R-Ky.), be preferable to cloture by a of "all Senators duly chosen and ," as Senator Paul H. Douglas and the many co-sponsors of S. suggest.

The Committee on Rules and Administration must report its recommendations to the full Senate on March 9. subcommittee, chaired by Senator Hayden (D-Ariz.), has held weeks to receive expert testimony effects of any changes in Senate 22.

There are already effective political to the use of the filibuster, Cooper it can only be employed sparingly, explained, and "if used continually the years in a single policy area its tends to decline."

by a majority vote would be policy, Cooper testified, since it impair the "unique role of the as the prime insurer that decisions be deliberate and that intensity of will be taken into consideration." extended debate, he said, there are not adequate safeguards for minorities.

"In a democratic government a simple majority of 51 per cent does not have a higher right to rule over the other 49 per cent" Cooper told the subcommittee. "The need for accommodation of interests must be balanced with the need for action," he said