Roll call votes were selected on the basis of their utility in revealing substantive differences on significant security policy issues.

CENTERFORSECURITYPOLICY: 2008 National Security Scorecard

Instead, it was the result of two roll call votes taken in the course of many hours of impassioned debate on the floor of the U.S. Senate.

CENTERFORSECURITYPOLICY: Center For Security Policy

At least he got roll-call votes, but nearly every one was defeated by Democrats when Mr. Reid gave the order to his caucus.

WSJ: Review & Outlook: The Senate After Dark

With six-year terms, senators have long histories of roll-call votes.

FORBES: The Senator President

As it is, the most conservative Democrat votes to the left of the most liberal Republican, according to CQ Roll Call, part of The Economist Group.

ECONOMIST: Congress

When the state roll call was completed at 2336 local time, McCain was declared the nominee with 2, 372 delegate votes.

BBC: Republican Convention diary