“„There is no evidence that the younger Mr. McCain committed any wrongdoing, or that Sen. McCain, the Republican presidential candidate from Arizona, had any knowledge or involvement in the bank’s woes, which partly stemmed from troubled construction and land-development loans. But with banks across the country struggling amid the credit crunch and the economic slowdown, the Republican presidential candidate’s family ties could emerge as an issue on the campaign trail. The younger Mr. McCain’s associates had urged him to step down from the board of Silver State, saying it could become a liability in his father’s White House bid, according to a person in the local banking industry familiar with the matter.>