Washington ? The top Republican on the Senate Finance Committee said Tuesday he’s investigating the finances of six well-known TV ministries.

Sen. Chuck Grassley of Iowa said those under scrutiny include Kenneth Copeland, faith healer Benny Hinn, Georgia megachurch pastor Creflo Dollar and one of the nation’s best-known female preachers, Joyce Meyer.

Grassley sent letters to the half-dozen Christian media ministries this week requesting answers by Dec. 6 about expenses, executive compensation and amenities, including use of fancy cars and private jets.

In a statement, Grassley said he was acting on complaints from the public and news coverage of the organizations.

“I don’t want to conclude that there’s a problem, but I have an obligation to donors and the taxpayers to find out more. People who donated should have their money spent as intended and in adherence with the tax code,” he said.