Define Foreign Power. If you mean a sovereign state, then yes. If you mean someone with power that is a foreigner to the US, then no. There are real threats that exist. People want to harm the US domestically and abroad. I'd rather they didn't. My guess is that Sanders rathers they didn't too. I'm just wondering to what extent he would use the US military to ensure this? It's a valid question that should be asked of all candidates. He's going to have to answer these things. I like his agenda, which keifermiller outlines well in his comment here, but a huge part of the presidency is foreign policy. Money out of politics - who is going to disagree? Income and wealth inequality? -Who, with a conscience is going to argue against this? Climate change? -Okay, I'm with ya. What about the rest? If he wants to ACTUALLY be president, we need more from him. If he just wants to ensure certain topics get in to the debates etc, then he need not elaborate. It's early in the #sillyseason, I'm sure these things will come up.