Nobody ever gives Liz Warren crap and she voted for Ronald Fing Reagan...
who never gets crap either, even though he was a registered Democrat from the time he was old enough to vote in 1929 until 1962, and a New Deal supporter for most of that period as well. In 1962 he famously said, "I didn't leave the Democratic Party. The party left me."
Kerry's wife was a registered Republican from the beginning of time till her husband ran for president in 2004.
People change. There are plenty of good reasons not to support Hillary Clinton. The fact that she was a Republican before she was a Democrat is not one of them.
Reagan did, very much, change a number of positions he held. The Democratic Party didn't really leave him; he was impacted by the Communist infiltration of the Screen Actors Guild, the conservatism of his second father-in-law (Dr. Loyal Davis, a very real father figure to Reagan), and by the corporate leanings of those who sponsored him in the 1950s as host of Death Valley Days and GE Theater, as well as those who provided speaking fees for him on the Chicken-and-Peas circuit. The Democratic Party of 1964 was little or no more liberal than the Democratic Party of 1948, when Reagan was foursquare for Harry Truman.
Teresa Heinz Kerry's late husband, Sen. John Heinz (R-PA), was a moderate Republican, even liberal on some issues. Her party switch from liberal Republican to Democrat wasn't a huge shift. Pennsylvania had a significant moderate-to-liberal wing of its GOP that lasted into the 1980s.
