WICHITA, Kan. (AP) — Lieutenant Gov. Jeff Colyer isn’t answering questions about a new loan he has made to the campaign of Gov. Sam Brownback.

A financial disclosure filing shows Colyer loaned Brownback’s campaign $500,000 in August — the third such loan he’s made to the governor’s re-election bid. He made similar loans in December 2013 and July, but both were paid back within two days.

At a campaign event Tuesday in Wichita, Colyer refused to answer questions about the loans or the origin of the money he’s lending to Brownback’s campaign. Brownback campaign spokesman John Milburn says the loans amount to simple “cash management.”

Brownback is in a tight race with Democrat Paul Davis.

Davis spokesman Chris Pumpelly says Kansans should know where Colyer is getting the money to loan to Brownback’s campaign.