McCain could have a conflict brewing. (LA Times)

Hensley & Co., one of the nation’s major beer wholesalers, has brought the family of Cindy McCain wealth, prestige and influence in Phoenix, but it could also create conflicts for her husband, Sen. John McCain, if he is elected president in November.

Hensley, founded by Cindy McCain’s late father, holds federal and state licenses to distribute beer and lobbies regulatory agencies on alcohol issues that involve public health and safety.

The company has opposed such groups as Mothers Against Drunk Driving in fighting proposed federal rules requiring alcohol content information on every package of beer, wine and liquor

Its executives, including John McCain’s son Andrew, have written at least 10 letters in recent years to the Treasury Department, have contributed tens of thousands of dollars to a beer industry political action committee, and hold a seat on the board of the politically powerful National Beer Wholesalers Assn.