Senate Republicans will raise campaign funds tonight at what they’re billing as “a tropical cocktail hour underneath the cabanas on the pool deck of Ameristar Casino” in St. Charles.

The description comes from an invitation signed by Senate Majority Leader Charlies Shields, R-St. Joseph, and Sen. Scott Rupp, R-Wentzville.

The event, from 6 p.m. to 8 p.m., will raise money for the Majority Fund Inc., the committee that works to keep the Senate in Republican hands.

Contribution limits don’t apply since the money goes to a continuing committee instead of a candidate committee. Sponsors are urged to donate $2,500; hosts, $1,000; and guests, $500.

The letter goes on to invite donors to stay the night at Ameristar Hotel and Spa, where a block of rooms is reserved just for them. Then the next day, they can participate in Rupp’s golf tournament at Bear Creek Golf Club in Wentzville.

It all adds up to “36 hours of fun in the sun,” Shields and Rupp say in the letter.

A separate invitiation from Rupp to the golf tournament kindly points out that donation limits don’t apply to that event because the money will go to “Show-Me Leadership Fund.”