We strongly disagree with their claims and will vigorously defend ourselves in court.”Capital One stock rose 1.7% on Tuesday.Last fall, the company presented a $35 billion bid to buy Discover Financial Services that is now working its way through the regulatory approval process.

A U.S. watchdog is suing Capital One for allegedly misleading consumers about its offerings for high-interest savings accounts — and “cheating” customers out of more than $2 billion in lost interest p