ST. PAUL, Minn. (AP) - Minnesota's Legislature has sent an education budget to Gov. Mark Dayton's desk where it's likely to meet his veto pen.

The bill passed by the Senate Monday pumps another $400 million into public schools. The House passed it earlier Monday morning.

But the Democratic governor says the bill needs more money to earn his signature. Dayton has threatened a veto unless lawmakers include funding for a half-day preschool program he wants.

Education funding is the linchpin to finishing the state's $42 billion budget before Monday's midnight deadline to adjourn. A veto could prompt lawmakers to return for a special session to finish up the budget.