LANSING, Mich. (AP) — The jockeying over Michigan's new right-to-work law is picking up.

Gov. Rick Snyder on Monday asked the Michigan Supreme Court to rule quickly on the constitutionality of the law that takes effect in two months. He says questions over its impact on 35,000 unionized state employees must be resolved before new contract talks begin this summer.

The Republican governor is seeking to avoid a "proliferation" of lawsuits from labor unions.

Also Monday, the state police said it spent $900,000 on overtime and other extra expenses to have a large presence at the Capitol during protests over the law last month.

The show of force by police was criticized by opponents who said it was inflated and unnecessary.