JEFFERSON CITY - Business owners, parents and women are just some of the people that could be affected by Wednesday's veto session.
Governor Jay Nixon vetoed a record high 33 bills last session. Many of those bills could be overridden.
While vetoed bills typically have less than a 10 percent chance of being overridden, this veto session may be different.
The Republican Party holds a two-thirds majority in both the House and Senate. This is significant because if all republicans align on an issue, they could override Nixon's veto.
Three important bills that may be overridden are a gun bill, a bill on abortions and a series of tax breaks.
The gun bill has been coined the "arm the teachers bill" because it would allow teachers to carry concealed weapons in schools. Supporters say it protects students from intruders while opponents say it gives students more access to guns.
A bill extending the time women must wait to have an abortion from 24 to 72 hours is controversial, but also likely to be overturned. Supporters say it gives women more time to reflect on an important decision. Nixon said it shows "a callous disregard for women in horrific situations" by not providing an exception for cases of rape and incest.
Finally, several tax breaks for businesses are supported by most republicans, but Nixon says Missouri's budget can't afford the tax breaks and that legislators need to show fiscal restraint.
The veto session begins in the House at 11 a.m. Wednesday, with the Senate starting an hour later. Legislators say they could be in session through Friday with all the bills up for override.