Flint, Mich. Mayor Karen Weaver, Rep. Rep. Brenda Lawrence, D-Mich., and Sen. Debbie Stabenow, D-Mich., and Michigan Gov. Rick Snyder await the arrival of President Barack Obama on Air Force One at Bishop International Airport in Flint, Mich., Wednesday, May 4, 2016. (AP Photo/Duane Burleson)

Flint, Mich. Mayor Karen Weaver, Rep. Rep. Brenda Lawrence, D-Mich., and Sen. Debbie Stabenow, D-Mich., and Michigan Gov. Rick Snyder await the arrival of President Barack Obama on Air Force One at Bishop International Airport in Flint, Mich., Wednesday, May 4, 2016. (AP Photo/Duane Burleson)

LANSING, Mich. (AP) — Michigan Gov. Rick Snyder promised to use his business background to fix Michigan’s sagging economy and debt-wracked cities.

He led Detroit through the nation’s largest municipal bankruptcy. He was mentioned as a possible presidential candidate.

But his successes have been overshadowed by the lead-tainted water crisis in Flint and the turmoil in Detroit public schools. Both have drawn accusations that the Republican former venture capitalist is dismissive and patronizing toward poor black residents.

At the center of those complaints is his use of a Michigan law to exert near-total control of distressed cities and school districts. Critics claim the takeovers have occurred most often in black communities and disenfranchised black residents. A Snyder spokesman says race isn’t a factor.