But the former neurosurgeon struggled with policy questions in post-speech press conference.
Iowa Republican made no mention of his signature issue in kickoff to summit he's co-hosting.
As he floats another 2016 GOP bid, the reality TV host says he regrets not running last time.
The likely 2016 candidate reiterates his support for immigration reform in Calif. speech.
The possible 2016 candidate is chastising other female Republicans who killed the bill.
“When you have a servant’s heart ... anybody would be interested,” she said.
The Louisiana senator is running for governor later this year.
Democrats' event will be held the week of July 25, just after the RNC's convention.
The stop is one of many to the state being planned by possible 2016 presidential candidates.
The Republican from South Carolina says he'll decide on a presidential run by May.