Don’t confuse someone registering Democrat in the 1930s and switching to endorsing Republicans by 1952 as a “liberal”.
That is hardly relevant here in the 21st century after the 1960s, Vietnam, and the presidencies of Jimmy Carter and Ronald Reagan himself.
Just for the record, Dwight Eisenhower was your proto-typical liberal RINO . . Ike was touting 90 percent tax rates during his admimistration.