Golly. From that Washington Post article noted earlier:
When he challenged Kennedy, Romney was a young businessman with no firm ideological identity, the latest in a line of moderate Massachusetts Republicans that included former governor Francis W. Sargent and then-Gov. William F. Weld. Then 47, he had been a registered independent until 1993 and had voted for Democrat Paul Tsongas in the 1992 presidential primary. He took a tough, more conservative view of crime, immigration and welfare than Kennedy but shared the senator’s liberal tolerance on social issues.