For goodness sake, Condoleezza Rice was the US Secretary of State! There are a substantial number of people who found her to be an excellent leader -- including at least 2/3 of the US Senate.
I am quite liberal, but I do not believe in blacklisting people because of their political beliefs. At one point, this country blacklisted "Communists" because of their beliefs -- it was not enforced directly by the government, but the blacklisting was nevertheless quite real. Let us not recreate that sad chapter in our history with "Conservatives" replacing the "Communists".