This excerpt taken from the PNC 10-Q filed Nov 6, 2008.
Our pending acquisition of National City presents substantial risks and uncertainties, which could limit our ability to realize the anticipated benefits from this transaction.
On October 24, 2008, we entered into a definitive agreement to acquire National City through a merger of National City into The PNC Financial Services Group, Inc. See Note 17 Subsequent Events included in the Notes To Consolidated Financial Statements under Part I, Item 1, of this Report for additional information. Closing of this merger is dependent on customary conditions, including regulatory and shareholder approvals. If we successfully complete this transaction, it presents the following risks to PNC, as well as those more generally described in Part II, Item 1A of our Form 10-Q for the quarter ended March 31, 2008: