traveling with firearms

I'm confused. Don't know what necessary license means. Are you a retired LEO? If so you are OK. Except in CA if you have more than 7 rounds in a magazine. Unless you are from and worked in CA. Not like the old days. Fortunately I worked in CA. Think you need to be more explicit in necessary license. Don't want to be political but don't understand what liberal means either. Seems like the law. What ever it is refers to all people. Democrats, Republicans, Independents, liberals, conservatives or what ever your affiliation. I doubt anybody gets excused from the firearms law. Everyone should check the state laws for every state they are going to visit.