JEFFERSON CITY — Senate leaders will try again this morning to pass a jobs bill that caps historic preservation tax credits and increases several other business subsidies.

Senators made no progress on the bill during an evening session that didn’t begin until after midnight and ended at 2:30 a.m. today. The Legislature has until 6 p.m. today to agree on a bill.

The latest version of the plan would cap historic preservation credits at $140 million a year but would allow unlimited credits for rehab projects costing less than $1.1 million.

In another last-minute change, the bill would double the annual cap on tax credits designed to help developer Paul McKee buy land for a large-scale development in St. Louis. Instead of $10 million, the annual limit for land assembly credits would be $20 million.

While most senators appeared to be on board with the plan, Sen. Jason Crowell, R-Cape Girardeau, tied the Senate in knots by offering amendments to add other tax credit programs to the bill.

Finally, the Senate quit to let members get some sleep and to let Crowell study the proposed compromise, said President Pro Tem Charlie Shields, R-St. Joseph.

Despite the problems, Shields told reporters he thinks the bill is in “pretty good shape.” If the Senate does pass it, the House will have to take it or leave it. Under House rules, it’s too late to negotiate.