NEW YORK, March 22 (Reuters) - JPMorgan (JPM.N) Chief Executive Jamie Dimon met Lael Brainard, the director of the White House National Economic Council on Wednesday, while in Washington this week, according to a person familiar with the situation. Brainard met with a range of business leaders including Dimon, part of a series of meetings she has had over the last month with business, labor, advocacy, and academic leaders, the source said. The CEOs of major banks gathered in Washington for a two-day meeting which started on Tuesday, sources familiar with the matter previously said. The banks were aiming to work out details for what needs to be done for First Republic within the coming 24 hours, another source said. On Tuesday, Reuters reported First Republic is examining how it can downsize and sell parts of its business, including some of its loan book, in a bid to raise cash and cut costs.

---