(CNN) - Sarah Palin is back on the campaign trail Thursday, this time raising money for Kentucky Republican Senate nominee Rand Paul.
In what is being described by Paul's campaign as "low key," Palin will attend a lunchtime fundraiser and reception in Louisville on behalf of the Tea Party-backed candidate who beat establishment pick Trey Grayson in May.
Palin endorsed Paul ahead of his primary victory – among the first in a string of endorsements that went against candidates the national party preferred.
Palin couldn't come at better time for Paul, who finds himself neck and neck with his Democratic opponent despite the state's conservative leanings and a political environment that is more favorable to the GOP overall.
According to a recent CNN/Time/Opinion Research Corporation survey of registered voters in Kentucky, 46 percent support Paul, with an equal amount saying they back the Democratic nominee Jack Conway, the state's attorney general.
Palin is also speaking at a non-political event Thursday night, keynoting the National Quartet Convention in Louisville.