Democratic candidate John Kerry's standing against President George W. Bush didn't improve following his pick of North Carolina Senator John Edwards as his running mate July 6, according to a Zogby International poll.

Forty-eight percent of 1,008 likely voters polled by Zogby from July 6-7 supported Kerry and Edwards and 46 percent back Bush and Vice President Dick Cheney. The two percentage-point margin is within the poll's 3.1 percentage point margin of error and matches the two point spread in a Zogby poll taken June 2-5...