The fall veto session of the Illinois General Assembly begins today.

Expanding casino gambling, approving medicinal marijuana and reforming the state's debt-ridden public employee pension system are among the issues that may be addressed.

The lawmakers might also consider legalizing same-sex marriage.  

The state Senate is expected to consider a bill Wednesday that could pave the way for expanded casino gambling, including Chicago's first casino. Governor Quinn vetoed the original casino expansion bill because he said it didn’t provide adequate safeguards against corruption.