TEI’s room block at the Grand Hyatt has been sold out. There may still be rooms available at the hotel, but the rate is not guaranteed. You can make your reservation https://washingtondc.grand.hyatt.com/en/hotel/home.html .
In addition, TEI has identified these hotels that are all within walking distance of the Grand Hyatt (download Overflow Hotel Options). There is no TEI room block or guaranteed rate, so please contact the hotel directly for information and to make your reservation.