Citing his potential views on abortion and the environment, Cantwell was one of 22 senators to vote against United States Supreme Court nominee John Roberts.[38] In January 2006, after publicly announcing her opposition to Supreme Court nominee Samuel Alito, Cantwell, along with 18 other Democrats and all 53 present Republicans, voted for the cloture motion.[39] The success of this motion ended an unlikely attempt to filibuster the confirmation of Judge Alito that was being led by Senator John Kerry and Senator Ted Kennedy.[40] Alito was confirmed the next day by a vote of 58–42, with most Democrats, including Cantwell, voting against the confirmation.