Gov. Bruce Rauner says an overhaul of Illinois' outdated school funding formula can be done over time.
Rauner supports a rewrite but says the formula is complex, broken and changing it will take time.
The Republican says he doesn't want to hold up the budget and funding schools if it takes longer than August.
Rauner spoke Thursday in the east central Illinois community of Paxton.
Lawmakers from both parties agree the formula last changed in 1997 should be revised over concerns that it penalizes students in poorer districts.