California abandons diesel truck ban and 3 other clean-air rules before Trump is sworn in
California abandons diesel truck ban and 3 other clean-air rules before Trump is sworn in
calmatters.org
California abandons diesel truck ban and 3 other clean-air rules before Trump is sworn in

Why not keep it up and just let Trump shut it down?
They seem to be saying that they want to wait for a more opportune time to resubmit than letting the Trump admin water it down and pass a compromise that closes the discussion for a while.
I assume that's what they mean by maintaining control over the bills.