. >> you are listening to the commonwealth club of california radio program and our guest is bob barr, former libertarian candidate for president. there are some questions about you and your conversion from being a republican to being a libertarian. why that happened, what you left behind. >> i left behind in 2006, when i was invited to and gladly accepted an invitation to join the libertarian party is a member of its national committee what i left behind was a party that bore no relationship to do the party that i had been a member of for many years before that. a party that not only does not object to a president of its party violating or appearing to violate the law and decimating the civil liberties of the citizenry, but applauds it, is a party to me that has lost its roots, does not care for the constitution and certainly does not practice what it preaches. i certainly have very serious concerns and objections to the manner in which george w. bush had expanded federal spending, that it was really the former president and his administration , the republican administration, the dep