In Washington, One Bank Chief Still Holds Sway

ASHINGTON — Jamie Dimon, the head of JPMorgan Chase, will hold a meeting of his board here in the nation’s capital for the first time on Monday, with a special guest expected: the White House chief of staff, Rahm Emanuel.

Mr. Emanuel’s appearance would underscore the pull of Mr. Dimon, who amid the disgrace of his industry has emerged as President Obama’s favorite banker, and in turn, the envy of his Wall Street rivals. It also reflects a good return on what Mr. Dimon has labeled his company’s “seventh line of business” — government relations.