Gov. Walker helps GOP running mate Mike Pence prepare for debate, stands in for Tim Kaine

INDIANAPOLIS — It's not every day you hear Wisconsin Gov. Scott Walker talk like a Democrat. But that's what he's doing as he helps Donald Trump's running mate get ready for the vice presidential debate.

A Republican familiar with debate preparations says Walker is playing Democratic vice presidential candidate Tim Kaine in debate preparations with the GOP running mate, Mike Pence. The Republican has direct knowledge of Walker's role but was not authorized by Pence's campaign to release the information.

Walker and Pence are political allies. Walker has heaped praise on his fellow governor while he's been more reluctant to praise Trump.

Walker briefly ran for president but dropped out last year.

Pence and Kaine are scheduled to debate Oct. 4.