UBS tie challenges McCain campaign
A co-chairman of John McCain's presidential campaign is also an executive with a Swiss bank being investigated by regulators, Newsweek reported.
Former U.S. Sen. Phil Gramm, R-Texas, is one of five McCain campaign co-chairs. A sixth, former Rep. Tom Loeffler, R-Texas, resigned from the campaign after Newsweek reported on his role as a lobbyist for Saudi Arabia.
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