The famously liberal city of Berkeley is expected to become the first in the nation to put forth a ballot measure calling for the impeachment of President Bush and Vice President Dick Cheney. The City Council will decide tonight whether to put the measure on the Nov. 7 ballot, at a cost of about $10,000. The measure, if approved, would create a task force to monitor the president and vice president, who backers of the initiative say should be impeached because of the Iraq war, federal wiretapping and other issues. Dozens of cities, including San Francisco and Oakland, have approved resolutions advocating impeachment, but Berkeley could be the first to let voters decide. The initiative by the city's Peace and Justice Commission and backed by Mayor Tom Bates, first arose in 2004 but never made it past the City Council because some thought it distracted from the presidential election.