This post has been updated.

The House of Representatives is poised to vote as early as tonight on a bill addressing a series of tax increases and spending cuts taking affect this week. But first lawmakers voted on a plan to freeze the salaries of lawmakers and federal employees.

Despite Democratic objections, the bill passed 287 to 129, with 55 Democrats voting with Republicans to approve the measure.

House Democrats charged that the vote to freeze salaries was intended to provide political cover for conservative Republicans planning to vote against the fiscal cliff bill passed early Tuesday by the Senate.