Kansas Senator Pat Roberts Doesn't Actually Live in Kansas

[KansDem]

14. Pat Roberts "On the Issues"

Pat Roberts on Government Reform

Voted NO on Congressional pay raise. (Jul 2009)
Voted NO on providing a US House seat for the District of Columbia. (Feb 2009)
Voted NO on granting the District of Columbia a seat in Congress. (Sep 2007)
Voted YES on requiring photo ID to vote in federal elections. (Jul 2007)
Voted YES on allowing some lobbyist gifts to Congress. (Mar 2006)
Voted NO on establishing the Senate Office of Public Integrity. (Mar 2006)
Voted NO on banning "soft money" contributions and restricting issue ads. (Mar 2002)
Voted YES on require photo ID (not just signature) for voter registration. (Feb 2002)
Voted NO on banning campaign donations from unions & corporations. (Apr 2001)
Voted YES on funding for National Endowment for the Arts. (Aug 1999)
Voted NO on favoring 1997 McCain-Feingold overhaul of campaign finance. (Oct 1997)
Ensure delivery of absentee ballots for troops overseas. (May 2008)
Limit punitive damages; term limits on Congress. (Sep 1994)
Government is too big, too intrusive, too easy with money. (Sep 1994)
Reduce federal government size & scope, including military. (Sep 1998)

http://www.ontheissues.org/Senate/Pat_Roberts.htm

So which ID does he show when he votes? The one with his residence in Virginia? How does that work in Kansas?

I'm confused...