While president of the Screen Actors guild he testified before congress on actors who he knew to be communists, he refused to acknowledge anything of the issue other than as hearsay.
Reagan viewed Franklin D. Roosevelt as hero, worked with the AFL–CIO to fight right-to-work laws and supported Harry S. Truman.
Sound anything like a conservative or republican at the time to you?
Reagan wasn't involved in politics, nor held elected office at the time. He became a Republican in 1962, and remained a Republican.
Gabbard was an elected Democrat member of the House from Hawaii, and it wasn't until the year after she'd left office in 2022, that she changed parties. She was still a Democrat, and in office when she actively endorsed and campaigned for commie Bernie Sanders.