text: in state senate, when a bill is passed by both the house & senate, but is vetoed by the governor, what happens in colorado, an emergency contraception bill was passed by both the state house and senate, but then vetoed by the governor. in this case, what steps must be taken by the state legislature to override the governor's veto, or can the veto be overridden at all? in colorado, two-thirds of the legislature must approve to override a veto by the governor.  (it must pass by two-thirds of the members present in both houses.)       a bill can be re-introduced, at another time.  the governor must state his reasons for the veto; those issues can be re-addressed and ensure, perhaps, the governor's approval next time.   the representative, who introduced the bill, (i believe) is going to re-introduce the bill next year.  (i've only picked up bits & pieces of info as i researched your question.)