One Nation has welcomed Senator Alex Antic's election as president of the South Australian Liberal party.
Senator Antic was elected at the party's AGM on Saturday, in a contest against SA upper house MP Nicola Centofanti.
His nomination was opposed by moderates and some conservatives in the party, with concerns about his record of voting against his own party, and his close relationship with One Nation.
In a statement that did little to dispel concerns about the Liberal Senator's close ties to One Nation, SA Leader Cory Bernardi said he was looking forward to "continuing a constructive relationship with the Senator".
Emerging from the AGM, many senior Liberals publicly backed Senator Antic's election, but former Howard government parliamentary secretary Trish Worth said he didn't have her support.
Ms Worth, a delegate on the state council, raised concerns about some of his policy positions, including a recent push to re-open a provision in the " No Jab, No Pay " policy introduced by the Turnbull government in 2015.
Shadow health minister Anne Ruston said it couldn't "necessarily" be said that Senator Antic was taking the party in a concerning direction.
"The role he's chosen to do today is administrative and so he needs to focus on doing that as well as focus on his role as a senator representing South Australians in Canberra."
Senator Antic left the meeting on Saturday without speaking to gathered media, but has before denied he wants a merger between the SA Liberal Party and One Nation.
"Even strong right-leaning Liberals would have a problem with that," Senator Antic said, adding that there would also be financial complications.