From a speech given today:

Now, I wasn't always a Ronald Reagan conservative. Neither was Ronald Reagan, by the way. And perhaps some in this room have had the opportunity to listen, learn, and benefit from life's experience – and to grow in wisdom, as I have. My life experience convinced me that Ronald Reagan was right. I'm a conservative that gets the job done. And you don't just have to take my word for it, you can just look at my record.

It's a fair point. As governor of California, Reagan signed one of the most liberal abortion laws in the country. And as late as his 1976 presidential run, he was not a supply sider. Even in that cycle, had he become president, he would not have been the President Reagan we all revere today.