A spy at the SABEW conference tells us Arthur Sulzberger Jr. spent much of his time at the Phoenix journalism event with a new companion. Meet Kathy Kristof, the latest rumored girlfriend of the New York Times publisher.

So it turns out Arthur Sulzberger Jr. has been seeing his girlfriend Helen Ward since 2005, about three years before the New York Times publisher announced a separation from his wife.

The publisher of the New York Times is seeing a married-but-separated woman he met several months before announcing his own marital separation. This proves he never slept with Caroline Kennedy. What?

• Times publisher Arthur Sulzberger Jr. has a girlfriend. Except it's not Caroline Kennedy as some have suggested. Sulzberger, who separated from his wife in March, is dating a "vivacious" lady named Helen Ward, who he met in Peru a year ago and who is separated from her husband, too. [P6]
• Jeremy Piven brought his…