( KTRS ) Missouri lawmakers are entering their final day of work with time running short for contentious bills on guns, abortions and taxes.

The Missouri Constitution’s deadline, to pass bills, is 6 p.m. today (FRI). That typically creates a fast-paced finale. But it makes it easier for opponents to block bills. Measures expanding gun rights and further restricting abortions are facing opposition from some lawmakers.

A proposal asking voters to raise the fuel tax by nearly 6 cents a gallon for roads and bridges is also still being considered.

Some measures already have been defeated, including ones legalizing medical marijuana and allowing people with religious objections to deny wedding-related services to same-sex couples.