NEW : In a separate interview on CBS , Manchin acknowledged the power of the NRA , saying : `` They wo n't be with us on this Sen. John Boehner says a vote on background checks unlikely until this week . A compromise amendment on background checks comes up last two weeks . Republican who voted to open debate may not support the bill . Debate on the overall gun package is expected to this week .
NEW : Sen. John Boehner says a vote on background checks unlikely until this week . A compromise amendment on background checks comes up last two weeks . Republican who voted to open debate may not support the bill . Debate on the overall gun package is expected to this week .